Kayak recommendations...beginner boat that I wont grow out of right away

My wife and I both have Delta 12S. We like them a lot! However, with my bad back and knees, I am thinking of a solo canoe. Kinda tough getting out after a few hours. I am 5’6’ 145 lbs. My wife is 5"4" 120lbs and has no issues.

A solo canoe solves the scraped shins. I’ve had two, both great boats, but the lack of back support moved them on.

How about a Dagger Alchemy S? I know of one for sale with skirt and paddle for $1300 . canadian. in the Windsor On. Ca. area.