I would get the Barney cage then
I have that. Yes you can easily get 6" of bedding in it - more if you want because it has narrow bar spacing so the bedding doesn't fall out. It is rare for a hamster to bar chew in a 100cm cage and harder for them to do it with the narrow 7mm bars also. They tend to bar chew in cages that are too small.
It costs about £15 more than the Alaska but it comes with a good sized house and a good shelf so you only really need a wheel and toys. There is plenty of floor space as it also has a good depth - 54cm. Loads of room for enrichment in it. I actually prefer barred cages as you can attach things to the roof and bars for extra enrichment, the ventilation is good and it's easier to interact with your hamster with a front opening door.
If you like diy you could make a really good wooden labyrinth house to go in the Barney! Also the wood shelves and house need painting with Plasti-kote waterproofing petsafe paint - so they're wipe clean.