"When I picked it up the guy said that someone had been to look the morning I inquired, and then phoned him 30 mins after I had put the deposit down to buy it."
... and that guy was me Xenon

!!! I couldn't believe it - I went to check it out day before and on way home (10 flippin mins away) I ALMOST turned around & went back to buy it .. but I though nah... I'll sleep on it. And sure enough rang next day to buy ... only for some Essex geezer to nick in half an hour earlier....!!! You were lucky mate normally I buy on impulse! But well done, you took a right gamble, honestly I'm glad it paid off for you straight up.
The guy at GTA started it up for me & the variator rattle came through loud & clear but like you say price included new one, cambelt etc so you got a good deal there. So .... are you gonna do what I had planned & get Autodelta to stick a supercharger on ..?
BUT ... although I was a bit miffed it's now made my mind up to get a GT 3.2 V6. The 147 / Supercharged option is dead tempting but ...well, I will sooooo miss that V6 noise & thunder. Plus the 'charger costs £4K which is mega-money for an extra 70bhp. Ahhh the Alfa V6 .... there's no turning back once you've experienced it..!