Personally i'd say dont theme it, Caddys dont really suit 'themes' so to speak. IMO you have a nice looking caddy already, Slam it nice 'n' low (Hell, make it so that you could bumper-bang a snail.) but have the front a wee bit lower than the back (10-15mm more). Stick some nice small wheels on it, some nice rims - Possibly 9" but i dont know if that'd mean modifying the arches?. De-badge the grill, and get one of those covers for the back (I dont know the name of them, but they're fibreglass and come either hinged or on lifters?). That'd look pretty good imo. I love the colour - defenitly keep the colour.
