If you want a landrover, then get a landrover. one life. live it. Sure there are other brands and makes that are probably more reliable etc etc ... but to me they are dull as dishwasher and lack character.
Of the bunch, I see the Td5 discovery, manual, non air suspension, non ACE as being the changing point between old school basic mechanical and newer style modern(ish). Earlier 200/300Tdi really are old and clunky these days.
other options exist though.
Series ... too old, wouldn't like to tow.
Defenders ... mechanically the same a disco, but less comfy, and crazy money. You'd get more overall from a disco or l322
Classic Range Rover ... really not very realiable ... its a classic car now rather than a daily I'd say.
Range Roverv Mk2 (P38A) - cheap as chips, tows well. V8 thirsty. Diesel gutless. Feels old now.
Range Rover Mk3 (L322) - Well within your budget, even the lower part. Nice inside, but can take a beating. actually not that hard to fix, parts easily available. Petrols thirsty, but nice, and might suit your low mileage more than a diesel. Early Td6 diesel as little low on power and mated to a weak gearbox. later Tdv8 engines pretty good. Body work can rust around the rear wheel arches at this age though.
Range Rover Mk4 (L405) - again, actually within your budget ... a step up again from the L322, but similar thoughts around the engines ( tdv6 has a lower reputation compared to the others) , reliability and fixability.
To me, a Land Rover's perceived cost comes a lot from whether you are paying someone to fix it, or prepared to do your own work ... if the latter, then they are a lot cheaper to run.
There are a load of forums out there which can offer advice and help around them.