In case you haven't heard, there is an affordable housing problem here in the Vancouver area. The housing market is out of control.
Many people have moved into RV's and thus the MH/TT parks are at full capacity all year long and have several month long waiting lists.
I speak of this firsthand as I was looking for a place to keep my TT.
I ended up storing my TT on a farm, along with many other rvs.
If you plan to store your RV out here, be expected to pay $5-$10 a foot.
Check out vancouver, BC parking & storage - craigslist
for your options on storage.
Google "gvrd rv campgrounds" and see what you can find for camping.