we are in pretty much the EXACT spot - except my tank is not out of date

i have a damaged VT sitting at my shop that has a great driveline but by the time the conversion is done it works out too expensive

the cost of rebuilding he 253 is a little pricey as well - although you could just buy an LPG tank that is still in date off ebay for sweet FA and put that in

i have been keeping an eye on VN/VP/VQs as they present the easiest for conversion as there's a little less mucking round with electronics
there's plenty around for about $1200 and all you need do is change the front of you LPG system (will still have to get an in-date tank)

im only waiting to see if i can pick up a complete WB Stato
if i luck out and get one with a rebuilt motor that ill simply put the motor and box in as well
you can pick them up pretty easy fr $3000 and under and it gives you a full stato front end, dash, console, seats etc etc etc

otherwise ill be getting a stato to do the conversion and then a VN or something of that nature for the EFI and, most importantly, the 4 speed auto

oh, and ill either use the cruise control from the WB Stato or get a VN with one (probaly VQ be seasier)

you could also find a HX or HZ stato if you didnt want a WB front and depending on your general plans