You can use spray paint and get very good results. Personally, I used DupliColor paint from an auto parts store.
But before you do that, remember to fill the grain and seal with sand/sealer. After the sand/sealer dries, sand it down so there are no bright spots. After that, you're ready for the primer. I used Zinsser BIN primer with good results.
After the primer you are ready to paint. It took me a full can to get the job done.
For the clearcoat, nitrocellulose is the way to go. Do not, I repeat, DO NOT use polyurethane! That is a sure way to kill the tone on the guitar you're working so hard to make nice. I'm not sure where you can get nitro in Canada, so you'll have to try the home improvement and the hardware stores up there. But you should be able to get the paint, primer and nitro in spray cans.