those bars are great Jim really comfortable for cruising and just bombing around town and country lanes.
I've tried to change mine several times but always gone back to the originals.
Someone once said that if you raise both arms up level in front of you in as natural and comfortable position that you can and then look at your hand position .. those bars would slot right in and they do
As for the engine lift go for it . if a seriously overweight 63 year old can do it then anyone can. Mind you I was laid up with a bad back for a while afterwards lol