I got a chance to jack up the car and take some pics. I thought I could get some decent pictures but clearances are so tight here (exactly why heat shields are needed), that they show parts of the heat shield but not all.
I highly recommend using heat shields like these as even though headers are Jet-Hot ceramic coated, they still radiate a lot of heat. I don't think the coating actually holds much heat in.
Drivers side:
Passenger side:
The shields are 304 SS in .050 thickness. They basically wrap the foot box with about 1/2 to 3/4" of space for insulation between the shield and footbox. I used ceramic wool type insulation (like used for ovens) held in place using a strip of metal pop riveted to sandwich the insulation at the top of the heat shield and preventing it from sagging down over time. The shields are made from 2 pieces, one for front of footbox, other for side and pop riveted down the seam in the middle. The folds on the shields are nothing fancy and can be made holding the sheet in a large vice or with a couple of 2X4s and C clamps and some muscle combined with a rubber hammer. The shields attach on the frame at the front of footbox on the big flat space and just lay on the top of the frame on the sides of the footbox.
On the passenger side, I would make the bend at the top so it goes backward toward the footbox if I were to make it again. The battery was mounted there when I first made the shield so the forward bend made sense for battery box clearance. I later moved the battery to trunk. A backward bend at the top now would hide the insulation and clean things up a bit.
The header on passenger side comes to within about 3/8" of the heat shield in one spot. On the drivers side it's about 1/4" at the closest. There's no evidence of the headers ever touching them even with this very little clearance.
Oh and here's a bonus pic for another good use of SS sheet in the engine compartment:
Yeah, cover up all the ugly wiring, hood latch, firewall, etc. with a nice smooth sheet behind the engine. This one is a bit harder to make and does require a sheet metal break for folds.
I hope these pics give you guys some help.