New to Motorhomes

Welcome to motorhomecraic, great your taking the plunge and going motorhoming.
Tons of info on this site, can't offer a lot of help on the particular type you're looking at other than to tell you to check the chassis/underside for corrosion and to check for damp in the habitation area. The mechanics on those are pretty bulletproof.

Welcome, I am fairly new to motorhoming too & have a 1998 MH but not a Talbot. Bring your own damp meter like I did & have a good look underneath at the chassis. Mistake I made was not so have a good look under the engine end of the chassis. Even my mechanic thought it was fine from above at a quick glance - only showed it to him after I bought it. Only noticed the corrosion on the chassis when he put it on a lift. The front had to come off - & a lot of cutting out & welding to be done.

Luckily I know someone who is very good at this. Very little had to be done mechanically so most of the cost was in the labour for the chassis work. The mechanical & chassis stuff can be fixed but if the body had bad damp or rot that is a different story. Bring a good torch & have a good nosey everywhere. Check the floor underneath by poking it with your finger close to the side skirts to check for rot. Inside, use your foot to poke for soft spots on the floor. Especially close to the outer edges of the motorhome where you can. Make sure it is cold started when you visit & not pre warmed before you arrive & look the exhaust to see how smoky it is.

Hi coldshower. Most motorhome, campers are built on a base vehicle like a transit or a ducato flat bed with the house bit added to afterwards. It is the base vehicle which tends to rust like a regular van. The other choice to look at is an a-class type where the motorhome manufacturers build their own vehicle but use mostly fiat engine and running gear. I have never own one of these type, so I can't say anything about their rust resistance.
If you buy something under 10 years of age and it is clean underneath, I don't think that it would cost a fortune to treat the rust prone areas with additional protection paint.
At the end of the day, motorhomes across the the world spend a good bit of time visiting coastal areas, therefore some rust prevention is built into the bodies.