If you find one that has had history of having the head gaskets done, bonus. Also check it's history for having any of the 4WD system replaced, another bonus if it's been right.
I do KV6's day in, day out, both on FL's and the MG-Rovers. When the headgaskets go it's is 90% of the time due to a coolant leak elsewhere; thermostat, w/pump, inlet gaskets etc. What kills the gaskets is the leak being ignored and the car being driven hot on low coolant and the liners sink and the heads go soft. The OE gaskets are multi layer, so don't fail in the same way the single layer 1.8K gaskets, which do fail on their on accord!
The weak poing on FL's IMO is the 4WD gubbins. Very capable when in good working order but not very long-lived, and expensive to replace (hence why I'm on true FWD). It won't win any traffic light Grand Prix' either, mainly due to the auto box, but if you find one with some history it could be an excellent winter hack.