Wait, how old is the automatic transmission in this Accord and was it every replaced? IIRC, that was a weak link in that generation of Honda... so much so that they extended their warranties on V6 accords to 100K mi IIRC.
Has it been replaced yet?
Since it sounds like you are planning to do the suspension labor yourself (and have the time), and are already planning on replacing all the bushings anyway, I'm more ambivalent about whether you go with the tokicos or reuse the existing ones. If you insisted on paying someone to do the work, i'd a) not do the work to begin with or b) if you definitely are going to do the suspension workI'd lean towards swapping struts just to avoid having to potentially repeat the labor work.
The extended Honda warranty went from 3yrs / 36,000 miles to 7yrs / 100,000 miles. Now at 18yrs and 325k miles, that warranty doesn't apply to me any more. But yes, that did in fact happen because of the weak 4AT in the 6GA and 7GA accords (not so much on the 7GA, but it still happened).
Has it been replaced? Under 11yrs and 216k miles of my ownership, it has been replaced twice. The first time at 127k miles and the second time at 185k miles. The 185k mile replacement happened back in somewhere around 2010 or 2011 (I'd have to look at my records to give you a more exact date).
There are preventative maintenance that can be done to prolong the life of the transmission on the 6GA, namely replacing the ATF with Honda DW-1 ATF every 15k - 20k miles (~12qts of ATF) or at every oil change replace just 3qts of ATF. The other big thing to do is to add an external magnetic filter with by-pass valve and replace the filter every 3rd oil change (15k miles). The last thing to do is to add an external ATF cooler. I replace the ATF and filter on this schedule. I've yet to add an external ATF cooler though.
The thing that is commonly said about this transmission on the Accord forums I'm on is not "if" we replace the transmission, but rather, "when" we replace the transmission. Despite the above preventative maintenance, all it does is prolong the life of the transmission. Thankfully, my Accord's transmission has been running great since the last replacement at 185k. It still shifts smooth and doesn't slip gears, so I'm happy about that.
As for the actual work itself, I was going to do the work myself, save for the swapping of the struts as that requires a spring compressor that I don't have. So that bit I'd have to take them down to a shop so it can be done for me.
PS. Didn't we have a similar thread about this Accord a few months ago when you were deciding whether or not to upgrade cars or keep the existing ones running? I seem to recall that most of us advised against dumping more money into this high mileage vehicle than was necessary.
We can look it up, but yes, a conversation was had about this very same Accord a few months ago. My position on the car has changed and I'll keep it as long as I need to - or can - keep it. Basically, unless I know I'm in a position where I know I can comfortably afford a new car payment of $400 - $500 a month for a truck, I'll keep this Accord until the wheels fall off....and put them back on and keep driving it! The only reasons why I would move on from my Accord would be if I had electrical issues or if I was involved in a traffic collision that I couldn't fix (read, frame damage or rear quarter panel damage).
In 2017 I knew that 2018 was going to be a high cost year in terms of maintenance outside of the standard oil change and ATF change for my Accord relative to the last couple of years. In 2018, I've already purchased new tires, power steering pump and PS fluid, replaced one COP, and all the suspension stuff I've already purchased. I still need to purchase front lower ball joints for my suspension project with the Accord as those are shot and I know I'll be needing to replace my pads and rotors as well sometime in the fall or winter. The shocks I that I asked about initially was, like I said, one of those "While I'm there" type things to take care of. I'm not even counting the alternator and starter in my costs that were covered for me under lifetime warranty parts store replacement.