I'm using this as a base for what I would like to do
Looking at everything involved even a 30$ us well is going to cost upwards of $100 Cdn, with the possibility of it being seized at the border. ($30 gun, $20-30 shipping $10-20 handling + currency conversion). So paying $120-130 for one isn't that bad. Plus, that still falls short of the cost to use standard parts to mod the marker into something else, stock, barrel shroud and fake clip will run close to $150-200. So in comparison $130 isn't bad heh.
I don't suppose there is anywhere to buy "replacement" parts of just the shell, that should have no problem getting over the border. Going to call the CBSA on Monday, hopefully I can get a hold of a real person so I can get (hopefully) a clear answer if a clear p90 will make it over the border.