It's not really that bad. If you use the 2nd link that I used, you can buy the hardware you need ahead of time. If you know how to use a power drill and a screwdriver you should be fine. The directions look a bit overwhelming because every step is fully explained.
I would say this has been one of the best upgrades I have done on my MH. My battery maintenance has dropped almost to nothing. I check the water level on the batteries every six months and barely needs any. When I need to run the genny to charge the batteries I can set the charge mode with the remote pendant to14.4 volts for fast charging which means less time running the genset.
'98 Gulf Stream Sunsport 325, 7.5L Banks Power Pack, Koni FSD's, Air Bags, ReadyBrute Elite,
2000 Honda Accord