I think what you're doing is going to give me a good look into what I plan on doing to my Camry. I also have a '00 accord V6 but I'm lucky if I can get 20mpg with that so I mainly drive the Camry that gets between 20 and 25 mpg depending on conditions (I live in the city, lots of stop and go). I'll keep tabs on this thread to see what all you're doing to the civic to give me some ideas for my camry, good luck with your project. Just thought I would also pass this along, it's something I just bought for my Camry, you won't find them cheaper anywhere else, usually these cost $20/each but here they are just $18 for a full set (plus $15 shipping).
http://cripedistributing.com/stainle...ces-p-391.html
the only thing other then that you would need is you will have to trade your wheels for some standard steel wheels that can probably be purchased from Honda directly or from ebay or something. Also, if your car uses 15" wheels instead of 14" wheels like my car uses, that link I posted has some 15" covers for like $30 I think.