I can probably get you some Stellar uprights - the local scrappy had some last weekend. Actually David H has some extra - email him at slopesoar4fun -at- yahoo.ca - he even has a doc on how to use Toyota Corolla GTS brake on the Stellar spindle -
http://www.locostusa.com/yahoo/GTS%20Hu ... ev%201.doc
Let me know.
I'm using Stellar uprights. For a +4 the Stellar rack would work as well maybe 2nd generation Rx-7, Miata, etc.
The specs on the Stellar front brakes are:
Twin piston caliper
disk diameter: 247.5 mm or 9.74"
I have the workshop manual so let me know if you want any pages scanned.
The bolt pattern is 4x108mm or 4x4.25" - you could use some of the 80s Mustang rear ends. Shares bolt pattern with Focus/Contour/Tempo for some nice light rims.