Discovery Owners Club

I'm looking to buy at around the £20,000 mark and I'm in two minds whether to go for a low mileage mk3 (50,000ish) or go for a 100,000k mk4. Am I right in thinking that at around 115k it will need a seriously expensive service including belts etc?
I'm new to Landrovers and any advice would be really appreciated.
Thanks...

If I remember right the belts are due at 5 years or 105k so they might have been done at 115k. you can get them done for about £600 at an independant

Thank you so much for your information, it's very much appreciated!