I had a similar kit a while back that someone else did
on my original B10 and worked well but needed to change
(this kit fits 14 inch minimum) which caused me rwc issues
and the boys in blue catching me on the way back home on
the same day and pointing out 14s are one inch over the
allowable Vicroads engineering limit in Victoria :(

I spent months looking for a better than 1200 coupe hubs
and custom caliper bracket until I cracked the Sigma/1200
hybrid setup which worked with 13 inches.

I think Neils setup is the best as its vented

However if you must (dont say Ive never helped you Brent!)
Here goes....

256mm disc (dba 411 opened up 1mm) around $80-120 a pair new
reconditioned VN Caliper - $ 40 wreckers
new rubber lines, 2 x $50 ENZED or other
mounting brackets $80-100 laser cut your own or use modded
sigma GE ones 78-80 they should work. At worst use rear
caliper brackets from commonho or Pintara.