Gino, you're talking yourself out of doing this. Finding any excuse you can to give up without even trying!
And your first point illustrates to me the root of the issue. You seem to be suggesting that you're looking to walk into a senior Product Development position. In order to do that your resume would have to detail a hell of a lot of experience doing something very similar for a recognised company in a similar market.
Unless you've got that then like anyone else you need to start lower down and work your way up by proving your abilities in a real production environment.
Knowledge of the original props is one thing. Being able to demonstrate your abilities in bringing a concept to market is completely different.
Cheers
Jez
