First Time cart build '99 DS

[cfuller]

New to carts and just picked up a '99 DS and instantly blew up my eBay account. Picked up the Jeep body, 6" lift, rear seat, custom seat covers, rocker guards, "carbon fiber" dash kit, steering wheel with adapter, and 14" MadJax Transformer wheels with 22" Tires. Gonna shoot the whole body in gray bedliner. Super excited to kick this off. Just want some feedback on what i should look out for when starting this project. Anything else i should update while i have it torn down to the frame? Not sure the age of the batteries but seems to run around 18 MPH with me and the Mrs. I've read that bigger tires will increase speed a bit but diminish torque, I'm not hauling anything its gonna be more of a LSV and camp site cart so I should be good on that front. Any thoughts or tips would be appreciated.