ERA FIA 5 pin wheels?

[Bearwolf]

My deposit has been in with ERA for a while now and I've been doing a lot of work planning on how to spend my extremely tight budget on my future 289 FIA build and I think I need some help. I really want to run FIA wheels, but I have heard that the ERA FIA Cobras need a little extra machined off of the back of the wheel to have the correct offset. I have also heard that 5 pin FIA wheels might not work on ERA cars as there isn't enough on the back of the wheel to machine off. If getting the car to look correct absolutely requires 6 pin hubs, then I might have to save a little longer and go that route, but I was kind of hoping to save the money by running a 5 pin adapter from Trigo or Vintage for some 15" FIA wheels and then just having a set of 17" bolt on wheels for the track.

Anyway, the main question is, has anyone here put Trigo or Vintage 5 pin FIA wheels on an ERA? How did it turn out? Have any pictures?

I'm really open to any thoughts on this issue, maybe you'll open my eyes to something I'm overlooking.

Thanks for reading.