3 point belts in the back of later cars, unsure on the S,T,V,W, Cars.

For your budget you'll more than likely get a leggy 110GT which doesn;t have the PD engine. Its still a good lump but not the same fish as the pd 115, 130 & 150's. I've had all of them and they are great cars. I think the engines capable of 400k+ and have briefly owned a 52reg car at 220ishk and in Eastern europe i'm told there are many in the 300's. The latest 2.0 PD tdi 140/170 engine (16v version of the old 1.9PD 8v) is even better. Wait till these are 2-2.5k

Rear beam bushes, if not already changed, will be hanging. You'll know if they are when you hit a good bump.

Have fun searching