For starting out, the CVA kit is probably a good choice. Another option would be to see if you could get a Knight USAK or Wolverine kit. They'll run about the same amount and I think they are a better base gun than most of the "beginner" CVAs. I bought the USAK kit 3 years and have never looked back - it is a great shootin' rifle.
You could go with the Disc Extreme....................it's a NICE gun................but overpriced for my tastes.
In-lines are probably the easiest rifles there are to breakdown & clean that's one major reason why chose an in-line for my 1st muzzleloader.
I DO recommend some barrel break-in for these rifles. It can be done one of 2 ways. Either go shoot 20 or more patched round balls or lead conical bullets OR just get some J-Bs bore paste and work 6 or so patches of it thru the bore according to directions.
Hope this helps.