Most propane distributers will supply the equipment free if you buy a minimum ammount of gas per year. Around here its 800 gal or so. they contract with you for fills at a "gaurenteed minimum price" but you must sign up during the summer. because they pre buy gas based on projected usage (sales).I have a company tank on the house and own 2 other tanks for other buildings on the property.I have shopped around for price and every time my home supplier will match or beat it,so I'm not so sure its worth the hassel to own your own tank(s).
If you own it you are responsible for the upkeep and maintanence on the tank,regulators and lines,as well as the intial cost if you cant install them yourself. Propane distributers will not fill randomly owned tanks untill they leaktest and inspect the installation. This will cost around $50 per system.Since I have a good working relationship with my propane guys,after I did my shop installs they came out and rebuilt the valves on the used tanks,leak tested the entire system,checked regulator pressures and purged them for $42,includeing spikeing the tanks with menthanol. I had already dumped the tanks,had them sandblasted,painted and did all my own pipeing. Out of all this I did end up with a very nice looking,well installed system done the way I wanted it done,so it was worth the investment to me. The tanks I bought on cl,had to go pick them up with the rollback ,$500 each.sandblasting,$120 each. Prime and paint (done by us) about $30 each. 100' of 5/8" copper tube to get as far as the building secondary regulator,$200. Personal time to do all this,about a week and a half.was it worth it? To me ,yes,but in the end remember there is no "free lunch" just because you buy a tank.
I couldnt find the rest of the install pics,so Ill take some of the finished product tomorrow.