I would definatly get a building inspection done - no matter what house you look at. I know way to many people that have not and have paid dearly.

Renovating is ok - we bought and old house and we have done a bit - but its not as easy and dreamy as we first though. Its fun for a while but if there is to much it takes its toll on you in many ways.

If the structure is sound then thats a good starting point.
Good luck!