Who has bypassed carrier apu AC unit?

Long story short carrier apu AC sucks! It hardly cools the truck on a hot day.. I'm wanting to remove the under the bunk AC unit and have a mini split installed. Has anyone done this? I'm wanting to use the outside generator to power the unit.

 

Yeah everything is showing good on gauges. It's been a problem since I had this unit installed. Part of problem is how it taps into the factory vents its a huge bottle neck.

 

I'm wanting to keep my generator part as its not even 10k hours yet. Would love to get rid of that box under the bed though and get that space back for tools lol

 

My last one lasted till 26k hours then got rid of it that's when generator took a dump. Still cheaper then replacing parts on the engine due to idle time lol. Last time I priced one it was $2,000