That's a great link ,almost should be saved on the forum
https://muzzle-loaders.com/collections/rifles
Is a good site to look at the reviews and other choices plus bullets
As said any knight, tc, cva,or traditions will do just fine . Add in that nikon scope and you'll have a deer taker machine.
My only big advise, put a witness mark on your ram rod . Can't recommend that enough . Once you start its an addiction. I have 6 myself.