Another vote for the Coupe, I don't see why you'd want the Bravo if its a Coupe you ultimately want with a 20VT, go for a Coupe now as your 'bridge car'.
Getting to know the Coupe in n/a form will help you make up your mind if you want more power and the turbo version, but in the meantime you can luxuriate in the Coupe shell. As Vick said, you are just down the road from the best Coupe specialist in the land and you seem to be sorted with the maintenance, which with the n/a isn't a great problem.
See beyond the blinkered 'if you're getting a Coupe, you HAVE to get a turbo' snobbery.

Turbo owners who had never driven a n/a drove mine and were surprised how quick it was.
My n/a Coupe was great and a well driven one isn't that far away from a standard 20vt in real world driving as most 20vt owners would make out (admit!) as proved by many Coupe meets.
If your budget can stretch to 4000+ there is a nice late (W reg) red 20v for sale on FCCUK now (late with the colour coded skirts and less chunky wheels).
I really like the Bravo HGT (and looked at many before getting my Coupe) but at the end of the day, kids would smile and wave at my Coupe in traffic (like I did as a kid), and unknowing people would comment 'what it is, it is a Ferrari?' (happened twice at least) in a garage.
The slashes, the lights, the dashstrip, the mirrors, the soaking when opening your window and the water rolling into the cabin, it's got to be the Coupe.