The Spyder shifters are plastic and a higher profile. The older ones are metal and very low profile.
Here are a few links to what you want...
MR2 Shifter 1
MR2 Shifter 2
I've bought my last 2-3 on eBay for under $50. There are deals out there if you are patient. The rust always cleans up with a scrub-brush and a fresh coat of paint. Easy to work on. You DO NOT need one of the short-shift kits. Those are likely for the Spyder shifters to make them feel more like the gen-1 shifter I'm talking about.