Thanks for all of the replies! I actually finished the job and learned a few things. So mounting bolts sometimes get seized in the thread of the nutcerts so turning the head of the bolt also would turn the nutcerts. I'd recommend anyone reading this to not rely on the manual's recommendation of the torque which is like 40~50 in lbs. It literally will start bending your thin wood roof panel since it's beneath a duct most likely if your trailer/RV is as such. I think mines is about 30~35 right now. I bought another A/C seal for the base just encase untightening it the same day made it unreliable. So ya I ended up borrowing my next door neighbor to help me lift the A/C lol. He used his head as I pulled with the rope. So anyways back to the bolts. I cut the 2 heads off & as I lifted I accidentally placed it with the 2 bolts on the roof. Thing is I had a pretty hefty fabric on top & no puncture or bending was present. I think I got a little lucky. They were pretty soft and malleable. It's just the old A/C would freeze up so they got like that. Another thing I learned was for the love of god please use some non slippery thick gloves when pulling it up with nylon rope. My fingers started bending on their own and it hurt like hell(might be a personal disease not sure). This was like 3 hours after the installation though. Bringing the old one down was actually pretty darn easy. I used 2 ladders as well to prep things. I think the biggest mistake of the whole experience was not wearing gloves. I love the new extension ladder. Feels way safer than the step ladder due to height reach. So anyways I appreciate all of your concerns and ya try to get as much people to help as possible, but if you can get by without that many go for it. Just have all the safety measures in place. The person that said it would be a disaster, well I hate to break it to you I actually tried it with her and we were pretty darn close. There was no imminent potential for danger though. It was more of a combined strength issue when the A/C needs to turn at the top. But hey if you think she can't handle it for sure then don't even think about it.
