The EA81 wasn't choosen for it's suitablity for LPG, it was choosen for size (width), weight, easy of maintainence, and the fact I have a soft spot for it after owning a few wagons in the past.
It is actually going in a spare Lada Niva body I have lying around.
LPG can be as easy or as complicated as you want to make it. As I'm going LPG only I can throw fuel tank and lines away, fit converter/regulator, probably use the throttle body off a fuel injected model, fit the plate to allow the gas in and connect up some water pipes.
If you duel fuel or run it with a fuel injection system it starts getting more complicated.
Good points: Safer that petrol (if you have ever been in an upside down wagon and hear dripping. . . ), and doesn't blow up in a fire.
Runs on any angle.
Simple supply system.
Nice and cheap here compared to petrol
Bad points.
Better call the tow truck if you run out of fuel.
Can be a pig to tune right.