For Blairmore Barebones, some people recommend one of the small walk-in tent sites by the river/falls at
https://reserve.albertaparks.ca/campground/146-Lun... that is a 15 minute drive from Blairmore. Most of the camping in the Crowsnest Pass area is close to freight rail lines and highways with trucks braking, so ear plugs would be handy. There are only pit toilets and no water or firewood at Lundbreck Falls PRA, but the prairie river and falls are pretty nice and the sites are CAD$28/night I believe. I have a site for the Monday night, but it is too tiny for more than my small tent.
For WCOCs, there is also group camping for the event bookable at
https://crof2022.ca/accommodation-2/For the COC's, they have now arranged group camping at a great rate at the Girl Guide Camp that you can book at
https://crof2022.ca/accommodation/