Steer well clear is my only advice. I have had several in the last few years, merely as breakers. I ALWAYS sell the engines easily -- why, because they get hot and warp!! People say its head gaskets, but its not!! Rover 25, 45, 75, Freelander and MGF all share this engine and it is simply SH*T.
Dont get me wrong, a late TF in Trophy Blue with black leather is a nice looking car, but a bundle of trouble. Early MGF's are so dated now and frankly horrible inside. Also, I am unsure as to your gender, but they are a woman's car. Similarly if Quentin Crisp were still alive today and fell on hard times, he'd have one too.
Why not buy an MGB or a Midget. Spitfires are not dear either. Or maybe a convertible Herald? There are lots of drop heads at reasonable money. An MGF, is just another sad mistake from the "Rover" group, who in fairness have been dead since 1986, and withering from the late 1970s!