I imported my altezza a year and a half ago and needed an ESVA.... it was a royal pain in the a**e!!
In order to comply with the model report EVERY SINGLE PART of the car must be in standard form for the test... which was a bugger as i had Front and Rear ARB's, TRD shocks n springs, Aluminium manifold, exhaust etc etc, even the tyre sizes must be standard sizes... i gathered up a list of standard parts while my car was on its ship on the way over from Japan... The only place in the whole of the UK i found that was willing to do the ESVA without charging me a winning lottery ticket was away down in Bristol
After alot of faffing about i went and picked my car up from Liverpool docks and trailored it to Bristol, the guy i had there got it registered, tax'd MOT'd and he got it through the ESVA test for me :)
Theres only 1model report im sure so seeing as theres 2 types of ECU if u get the wrong kind 99% of places will fail it, however find some1 nice enuff and they will put a sticker on it so it complys with whats on the model report
Your best bet would be to get a car thats 10yrs old or more, that way its nice and simple and would save u a lot of money and messing around
Dave!