I just pieced together a FMIC for my 90 626 gt and it only cost me around $200 for everything...
I/C piping: $89
FMIC core: $77
90 degree reducer: $20
BOV flange pipe: $15
and the I/C piping kit came with 4 ply silicone couplers (2 90 degrees), 16 T-bolt clamps, pipe = 2-90, 2-45, 2-180 & 2...