There has been considerable information posted on this era truck within this thread from people that have seen the good and bad. The truck the OP posted will be a good one for someone that can do their own repairs and service, but will cost someone else too much if they have to pay for labor.
I feel the OP will hard time finding a camper as light as he posted unless it has minimal amenities. If Quebec is like BC and enforces the GVWR door tag, it will be difficult to stay compliant once people, gear and water are added to the total.
Newer trucks are heavier but have a larger GVWR. There would be better chance of finding a camper that works on a SRW truck that has 3000-4000 lbs of payload available.