i did this on my london aire...i was lucky and had an extra plug that had tag said vapor, and was of course above the 80% fill line.just like the one that the regulator was in.. now if you are using appliances with a gas valve then just plumb off the tank, be sure to add a shut off close to point. if you have appliances with no regulator then of course add one. and use a proper sized line.. usually 3/8" is ok unless big btu draws. and where you have to go thru or drill a hole then make sure to use a grommet or big enough hole with proper support...thats a start...and should be able to get it from there..
2007 Alfa Gold!! model 1008. 400hp Freightliner, IFS!!