Any question answered...

Cheap body panels? Highly unlikely. A lot of bodyshops now won't have a clue how to make a fresh panel, only how to fix out the biggest dent then put some filler on top.

Finding a decent place will take some searching. What type of panels are you after? A few floor panel with some strengthening ridges?

Really just need someone to bespoke small parts to fix the holes and rust parts. Not full panels. Also footwells done.