Morning Dean
We used to make prototype cars for motor shows
and development, which were mainly constructed of
firbreglass amoungst other things .
It totally depends on the standard you are looking for , if its show car
Standard forget it , but if it's nice and glossy probably do able at home .
Working with firbreglass is a different animal to steel a car and requires use of
materials and techniques not normally used in body shops .
Lotus are the worlds leading experts at this and they spent 40 years getting it right .
There is too many do's and donts to list here but outlay is a major draw back .
Most professional body shops will have three sets of spray guns , primer, base and top coat.
Also at least two spray ovens ,base and top coat . Then there's sanders with extraction
a absolute must .
I was at AC for a few years when they developed the lightweight carbon Cobra and I seem to remember they had three spray areas , but they were probably the best I've ever seen ,.An awful lot depends on curing time and temps with fibreglass .Basic highlighting skills are quite important as well , once again not rocket science but takes a bit of practise .
Personally I would do the prep and get it sprayed at a body shop .
Let me know if you require anymore info , happy to help