Are the liners easy to form fit at home?...
Are the liners easy to form fit at home? Where can i find the toe caps they use to fit these at the shops?
Heat molded liners are pretty easy to do at home. I've done it 4-5 times with various boots. Your best bet is to use an electric oven and keep the liners away from the heating element. I'd avoid heating them in a gas stove.
Toe caps aren't the easiest to track down, but you can make your own out of materials at home. Your goal is to spread your toes a bit to create some extra room. You can cut the toe section off of some old tube socks and use those or put some cotton balls between your toes.