Working a Ski Season in Banff (possibly Whistler)

Hello all!

I'm planning to do a ski season in Canada next year, and am pretty set on Banff, though am also looking at Whistler. I have a couple of questions that I was hoping you could help me with. FYI, I am a 27 year old guy from England.

1. Accommodation. If in Banff I'd love to work on one of the mountains, however, I imagine this would be pretty much a non-stop party? Not that I'm terrible anti-social, but I'm not really a party person (don't even drink), and I prefer to have my own space (and quiet) to return to. What sort of advice would you give about living in Banff itself, renting a room or something? Is it easier to find accommodation in Whistler?

2. Money. I was wondering if a ski season will kind of pay for itself (withholding flights), or whether you can make a tiny bit a travel afterwards? I don't drink, and I'm fine with making my own food, but I suppose those costs might even out if I pay more for accommodation.

3. Summer. Since the VISAS last a year, its conceivable that I might stay for part of the summer season. Apparently there's actually more tourism at this time, does this mean that jobs are also still available, or would it be more sensible to move to another part of Canada for this period?

Thank you very much for taking the time to read this post :)