contact Rockey's Tackle in Orillia, they're the Okuma warranty centre, they'll set you up. They set me up with 2 Aventa top sections last year and they're getting me a top for a Celilo shipped in, 4-6 weeks
a map+regs+MNR stocking list will yield more answers to your question than you'll get here. That's for sure. Brook trout were intentionally wiped out in most of southern Ontario in the early 1900's to be replaced with bass because they thought bass were a superior fish. These were the same times they were using sturgeon to fire the boilers on the lake boats. There's one thing that's consistent about humanity through the changing eras and that is stupidity.