I'm planning to do a 4000 mile r/t road trip the middle of next
month (CA to MN and back) and was wondering if I should
be genuinely concerned about the potential of the infamous
head leak problem.

Our '87 westy syncro currently has 84k miles and has never
displayed any signs of coolant leaks or evaporation. I've replaced
the fluid every year with a 'no phos-phate'  coolant and distilled
water.  Am I taking a gamble or is it just a shot in the dark?

Is there anything else I should inspect as well?

Thanks,   Kevin Sullivan