Wotcha and welcome.
few things with the hatch at 40k it may have had the belts changed if it has check for the pulleys and pump done as well.
Top mounts can fail check for clunking when slowly rolling back and forth then braking
the nuts behind the sound blanket under the bonnet can rust leading to the bonnet corroding
the scuttle panel can get loads of crud behind it if it has been left under trees etc get a torch and look where windscreen wiper motor mounts are.
there is the subaru lip over the rear wheels where crud collects check for any bubbling on the inside which will come through to the outside.
Paint on the interior door cards is thin by the window controls etc check for, if shabby a point for negotiation but cheap to flatten back and blow over.
keep us posted on progress