He wants to run a 300 amp welder not have a 300 amp supply!!Be easier to move to a shop with 3phase......hahaha...
Sometime the leky board will up grade u, cost nowt to ask tho....and usually not so expensive, had it done twice...
Basically ur looking at lorry engined genny’s, cost a lot to buy a decent one, then there's the noise...!!!!
and do they suck fuel, not so bad if u can get 1 that runs on propane tho but they r rare and very sought after.....
300amp plus all the rest of the equip...forget it....
If u want some fun as well just get a huge Ruston or the like single cyl D engine and they often come with big genny’s...
My last 1was about 8-10 tons....very quiet tho...they can cost a fair bit but u'll always get ya money back....
........basically get the shop converted....
If u pay tax it'll get sorted as an expense by the accountant....
If it's a fun thing, we’ll just grab em n hope it don,t hurt to much....
My next move will include the same problem but luckily 3phase stops at the last pole next to my house....
Which ever way doing cheap don,t work unless ur very lucky....
Sorry...