Bike are relatively cheap.. add in the hassle of getting it to Gatwic, Manchester or wherever you fly from. Then, add teh cost of a biek on the Pacific Coach lines airport transfer $20-$30
Rentals can be in great shape, although don't expect massive inventory as most rental fleets will have been sold on by october.
Own bike is always best, if you don't break it then thats £300 of upgrades....
Hostel wise.. HI in the athletes village. Nice but to far away to be useful IMO.
Southside lodge as Tom mentioned, but still in creekside which is also next to useless if you're pedalling a big bike.
Look up the UBC lodge also.. Nordic, so also a pain to get to/from but thats the challenge with budget accommodation.
Staff Housing from Whistler blackcomb might be your best bet on a budget.. but take a hazmat suit
Another option is to touch bases with us.
Our packages will be done at the end of september, but we haven't confirmed what we are doing at the end of the season.
We might have rooms to rent.
If the 21st - 28th September works, we have space in our main catered chalet. End of september is when the weather starts to turn. October and it'll likely be wet!
email in profile if you have any questions:)