Building a clone of a Sunspot shouldn't be hard. The Sunspot design is nothing new, it's just a slightly boxier version of a teardrop camper. You can probably find plans for building one online.
Sunline only built about 100 Sunspots, so yes, finding one is very tough. On top of that, Sunline was an eastern company, very few Sunlines made it west and even fewer made it to Canada. I know of one that was in Ontario, years ago.
2007 T-286SR Cherry/Granola, #6236, original owner, current mileage: 9473.8 (as of 6/18/21)
1997 T-2653 Blue Denim, #5471
1979 12 1/2' MC, Beige & Avocado, #4639
Past Sunlines: '97 T-2653 #5089, '94 T-2251, '86 T-1550, '94 T-2363, '98 T-270SR