does any one have input on this subject?

i'm wanting to increase the size of my small farm but the power limits at my house are preventing that (100amp, no 240v). there are commercial lots available nearby that offer 480v 3 phase power. i have very little knowledge of how to run 12v gpus on this type of power. i mostly buy pc power supplies and so far only run them at 120v. A quick search for 480v 3 phase power supplies shows some but they output 24v and are expensive. most servers run on 208v? and i've seen the server power supplies converted for gpu's with the breakout boards and custom wiring, but what is needed to connect even that setup to 480v 3 phase? i doubt there is any inexpensive way to do this except maybe by second hand server equipment. so any brief explanation of how people have powered their mining farms would be appreciated. thanks