Dan, cool.
so, can you answer me this?
is insurance just a fucking big con?
Not if you use the right people mate 
lad i know is 17, not long passed his test and got a newish shape fiesta, only a 1.1 or 1.2 or something. now, his insurance is fucking unreal, and the twat just stuck a set of alloys ont hat cost him £800 - the ins co want an additional £600 for the pleasure - how fuck can they justify that?
I don't know how they can justify that, for the small amount of modded cars that we've done over the years we've never charged anything like that for a set of wheels or anything else! Who is his insurer? 
anyway, my real question is can you insure modified cars cheaply with a 3k annual milage? my 3dr is slightly modifed over standard, but i still wouldnt expect to pay more than £400/500 for a year.
Unfortunately mate we don't insure highly modified cars, not even 'slightly' modified like your 3dr!