I would suggest the 01-02 EX-V6 6 disc CD changer, a satellite radio tuner, and new shocks if you haven’t by now. Along with the leather door panels and armrest. I went the OEM route and bought CL Type-S, which are a bit firmer and handle better than the original shocks but still offer very good ride comfort. Since they’re Honda I know they’ll last for at least 50k miles, unlike aftermarket brands which you can never be sure of. Aside from that there’s not a whole hell of a lot you can do…I found a 02 Coupe V6 gauge cluster (with the silver graphite face with red needles instead of orange on black) on ebay for real cheap and bought it.
And how did your engine die so quickly?
Edit: The MXV4's are terrible dude. Goodyear Assurance Tripletred are the best all-seasonals you can buy right now. They don’t have nearly the response and control of the max performance tires I’ve owned (Goodyear Eagle F1 GS-D3, Potenza S-03, Dunlop SP9000, Yokohama ES100) but they’re amazingly close. Even more shocking is that they’re unbelievable in the snow.