I would be inclined to go normal instead of Amel if you intend to have it in the sun frequently. Brief outings are likely no big deal, but regular long sunny walks could potentaily lead to earlier instances of cataracts and other ocular problems in Amels. Though if you really want a pet to regularly go on walks with, a dog would get quite a bit more out of it.
Considering that I've witnessed some snakes slither through a fresh poop they just dropped, I do not allow any reptiles in my bed.