The proper way to do this is way way way too advanced to make it practical.
1st LEECE NEVILLE 260-amp alternator READ 260+ amps
2nd A nightmare of mounting brackets that have to be ABSOLUTELY straight and true
3rd Drive belt or pulley changeover to drive 10 horsepower. $$$$$$$$
4th OO -
2/0 cables from alternator output studs through 200 amp breaker under chassis, sheathed in protector tubing to a pair of one contact 200 amps truck and trailer big rig sockets. NEGATIVE must be done the same way -- 2/0
Then straight to ANOTHER breaker then tied directly to the batteries that feed the inverter. Not straight to the inverter as an isolated power feed. Have problems and a flickering isolated/dedicated feed line to the inverter it will fail the inverter sure as hell.
How do I know all this?
A very wealthy customer had me and a precision machine shop do it thirty years ago. Brackets and pulleys alone cost nine hundred dollars. And the machinist ****** about the number of hours. It turned out to be an almost four thousand dollar modification. thirty years ago. He paid eleven hundred dollars for the alternator alone.
And I swore NEVER AGAIN.
After fifteen or twenty trouble-free years I lost track of the owner.
Ridiculous.
