The 60A capacity isn't for running all the loads, the fuse and wiring isn't even close to handle it assuming you could turn enough ch!t on.... The 60A is better for cramming power back into your batteries when hooked to shore power in the least amount of time.
https://www.progressivedyn.com/rv/charge-wizard/
Good cables also help. On my old trailer the batteries were in the front, converter in the back. Remounted the new PD converter close within 6 feet and bought some bulk welding cable, made a big difference in charge time...
Hmm, Maverick party looks pretty good. Kenney is turning out to be a fugtard....
https://www.msn.com/en-ca/news/canada/alberta-abruptly-cancels-request-for-drone-surveillance-to-watch-campers-on-public-land/ar-BB1gSgHs
Think that was the same machine a buddy had back in the day. If memory serves the lack of low range coupled with mediocre power made it struggle, especially in mud.