First, you have to figure out what kit you are going to use. Then, you have to figure out what interior you are going to use in it. Some kits come with an interior, and some dont. Some interiors that are offered with the kits are really bad, not accurate at all, and hard to fit. Since you are going the MR2 route, your choice of interiors is giong to be limited. If you are going with the Extreme or AD Murcie, you will need to go with an all OEM interior, which will be a little pricey. The reason I say all this, is because it is directly related to the pod and guages that you can use. You cant use an OEM interior on a Triangle-G Murcie, and you cant use a Triangle-G interior on an OEM (Extreme or AD) Murcie. The pods are slightly different shapes (VERY minor, but none the less different). I make an OEM looking pod and guages for the Tri-G kits that will work with the Fiero wiring harness, and I think Italianknightrider makes a pod and guages that will fit the OEM interior, but I dont know if it is for the MR2 or Fiero, and I dont know the cost.
My complete unit costs $1070, and just plugs right in to the stock wiring of the Fiero. I could make one to work with the MR2, but I could'nt give you an accurate price until I see what all is involved with the adaptation.
The pod and instrumentation all depends on the kit you will build. Figure that out, and go from there.
