Hey,
Suitable car for you is Nissan Patrol, 1988-1990 they can be picked up cheaply for around 6-8k, advantage of these car is, good torque for towing, 2,500kg towing capicity, RB30 option, strong gearbox and diffs, coil suspenion for comfort and road handling, 7 seater (great for bring a couple of mates...), parts aren't that hard to find because they has been around for 17 years and can be driven daily.
But it's your money and choice, they are cheap to insure
Hope it helps
Cheers
Grant