Bike-Engined kit-cars

Hi, to say I'm new to bike based kit cars would be an understatment, so appologies in advance for any "silly" questions...

I've just purchased the Honda Sp1der that was advertised on this site and was wondering what options are out there to have some modification done.

1. Addition of a reverse gear
2. Replace the current VTR 1000 SP1 unit with something more powerful and easily sought, from a newer bike ideally.

I guess my ideal at this juncture would be to source someone that could take these modification onboard as a project, as my mechanical skills and time are somewhat "rusty"

Hi, not sure if i'm on the right forum, but here goes! Me and a couple of mates want to start doing hillclimbs and sprints, we have a "razor nose" karman ghia fibre glass shell and are currently making an aluminium chassis to fit. We have an aprilla rsv 1000cc engine to go in, but dont know what diff to put in, (we may be going with twin engines later) any suggestions on type/make of diff to install, and any other tips on how to get started!!!!!!!!