I am in the process of planning a five month MD to Newfoundland trip. We are 54'LOA, as far as the ferry to Newfoundland is concerned, but LOA also makes a difference to some of the places being looked at to spend a night. Most notably Harvest Hosts look at LOA, not just trailer length.
The devil is in the details. Mostly private parks will cram anything in but state parks, provincial parks, even COEs can have length limits & limited sites for large rigs. No fun at all showing up to a chosen CG for the night only to be told that your rig is too big.
At a 34'trailer length we have only been turned away a few times in 14 years & hundreds of CGs across the country however we have been the longest unit there at many of those CGs, too long to use the site without overhanging the back of it.
Boat: 32' 1996 Albin 32+2, single Cummins 315hp
40+ night per year overnighter
2007 Alpenlite 34RLR
2006 Chevy 3500 LT, CC,LB 6.6L Diesel
Ham Radio: VP9KL, IRLP node 7995