Even if the insurance doesn't rape you, the running costs will good buddy.
Serosly, as tempting as it is, just stick to low-group cars and dont get drawn into trying to make them into something they're not.
You want to have a nice car and everything, that's understandable, but if you give it just a couple more years you'll be able to save the money you're on the verge of forking over (hand-over-fist) and plough it into something newer and have less of a fight on your hands with insurers.
I had a really to55y Corsa Diesel for the first 5 years I was driving, cost nothing to run, and progressively less to insure. After 5 years of having what was, in the end, a really nasty jalopy, I was able to spend my money on a little coupe and get decent insurance owing to the fact that I had no chance of racing anything or other associated hoonage and thusly built up a fully-protected no claims discount.
Don't blow your wad early sir, a common mistake of young men these days.
Oh, also, since I hadn't blown money on the Corsa trying to make it "cool" with alloys, exhausts or any of that b0llocks, I was able to sell it on for a decent sum. Small diesel motors were seeminglyworth their weight in platinum!