Oh hell...have them both.....!!

Reeling in the thread drift...
Dave, are you worried about emissions? We get away with things because our 40's are from the 60's but the SLC will likely get registered as the year it's built. It might be something to think about before eliminating smog gear and going postal with the hardware- although the true gurus on this or the other forum might already know the ways around this as well.
That said, the low boost, twin turbo'd option does have enormous sex appeal.
Best of luck moving the Esprit and can't wait to see the SLC in the flesh.