Coil overs, perspex and other mods?

[haynes]

Thinking of stripping my car and doing a complete rebuild, continuing on the road legal / hillclimb theme. Maybe i'll try and find a mk3 tax exempt shell to get away from emissions, side repeaters and fog light. Possibly go fo a steel flip front and lose the inner wings. Any opinions on ditching the rear sub frame and going for coil overs? I'd also prefer to go for perspex windows, grp bonnet and boot but am slightly put off by the security issues as it may sometimes be parked on the street, althought theres no stereo, tools etc kept in it, anyone else gone this route?