here is one i made in the boot of an NB8A we were parting, it was my first time fibreglassing but it came up pretty good!..
I think all the fibreglass only cost about $80-$100 and i have repaired the race car nose cone a couple of times and i would think i have enough left to make atleast 1 - 2 more of these boxes.. and it was pretty fun

Just some food for thought! if people are after a 'snug' fit... the fibreglass moulds perfectly with the shape of the boot and its a pretty cheap way of doing it.
Regards
Ajay