When to fit bodywork

[carlknight1982]

ok so i have very limited safe storage for my fibreglass, im looking at the saturn 10 piece deal so my question is how far along do i get before i start to fit the bodywork, i have a rolling chassis c/w suspension, engine and gbox. im starting on the brakes soon (next weekend) then im going to start to modify the chassis to suit the rear GRP panel, is there anything else i should do before i fit the nosecome, scuttle side panels and rear tub??