There fine,looks like someone has spent a lot of time in the past doing it all,I’ll get the rest of the interior out and see if it’s hiding anything,it’s just a shame the interior is really really tatty,it looks like it’s been a work truck as the previous owner lived on a farm according to the log book.
That doesn't matter and is an easy fix. Loads turn up on eBay. Rust is what matters and it sounds like you've done alright