Not sure how that would work without a lot of work ... and if your talented enough to make that work why not spend $350 and install a legit rv air conditioner?
he took the window A/C guts out of its case,(no breaks in wiring or tubing,,must be done carefully) and installed it inside the box/pan of an old roof top unit, that was non-functional he gutted the old roof top unit to install the new smaller A/C parts