20 years ago, when buying our first very old farmhouse here (sold it many years ago), we contacted a UK surveyor who at the time wanted 2 grand, plus hotel accommodation and travel costs to and from the airport...........we declined. The French gentleman at the time who was doing the normal diagnostics gave us an in depth structural survey for 500€*, which included the diagnostics report. Whether or not the new diagnostics guys - who seem to use a laptop and a range of gadgets - can offer this service, I don't know.
* But, the house with no sanitation, cold water feed only and one fuse on the wall, he didn't have a lot to do. He didn't notice anything that we hadn't already seen in the structure, but it did reassure us that we hadn't missed anything.
Caveat emptor