where to buy panels and controller

Discount Solar in Q (no affiliation) has a pretty good inventory and knowledgeable staff but a lot of what happens on your particular rig depends on what you want done and the complexity of the job as well as who is available to do the work. Since you are in Canada, you are used to higher taxes. Q has some of the highest sales taxes in the country as well as California.

Do some research before you buy. Know what you want and what to expect before you buy. Often solar is a "sales oriented" purchase (rather than performance oriented) if you know what I mean.

Chum lee