race prepping a sprint - where's the fibreglass?

[aussiehcviva]

Good day.
I've seen pics of some quick sprints on this forum over the years and have used them as inspiration for my build up of a nice 87 sprint for motorkhana and sprint events. I was wondering whether any of the race guys here could point me in the right direction for a fibreglass bonnet? I've sourced front wings at a good price in the UK (they weigh 3kg each) but can't find doors, hatch or a bonnet.

Also, any advice on lightweight rims would be very helpful too.

Any help would be greatly appreciated.

thanks

hcviva