I only saw half of mine being done, i had to run off and do a few castles i think i was gone about 45mins and carl had got them all back on so I missed the hard bit
But once you look at them there not that scary, I think I would do both chains IF I had the crank holding tool and the locking tools. But there more than the chain kits.
anything easy when you know how, I can build a bouncy castle from start to finish in 4 hours. I dont know many other people that can hahahaha.