I walked in a brand NE 21 and my head hits the air conditioner do they have a lower profile inside air conditioner they can put in there?
You must be quite tall. Look into the Houghton Belaire unit being imported by Advanced RV in Ohio. Much quieter than the Dometic and the indoor profile may be a bit more favorable. Advanced RV was doing all the installs initially but may now be in a position that they will send these out to OEM's for them to install. Would be nice if Escape would consider it as an option. Much more expensive but might be worth it if you aren't hitting your head and you'll be able to hold a conversation with it running. A custom mini-split install recessed in an overhead cabinet like I have done completely takes care of the overhead clearance issue but is much more complicated and something you would likely need to do yourself.