I too have jackets from both makers. And as Jorenz said, one day, Caber, you probably will too.
But its easy to say, "aww, just get one from each." I don't know your budget, and neither does most anyone else. So, all I can say is write to Peter, ask him what you would like, see what he says. Then call Tony Nowak. I guarantee you, if you order a jacket from him, by the time you actually get it, you'll be considering naming your first-born Tony.
As Gwyddion stated, the jacket is totally custom. And if SA is an interest of yours, Tony is the best. If you order a CS, you will have a CS. It will be as close to the same jacket as possible. What Peter makes is a solid, affordable, virtually SA jacket. But I no longer own the "Raiders Authentic Lambskin" I originally purchased from Peter. I thought it was too light and it didn't seem tough, not even remotely. My Raiders 747 Cowhide Nowak is AMAZING. When you spend that extra $500, you'll know where your money went: straight into the permanent smile you'll be wearing as a result of wearing probably one of the most beautiful jackets you'll ever own.
I still have my Washed Goat LC jacket from Peter. I spent about $200 on it. It's a great jacket, but its just not in the same league as my Nowak. They just don't compare.
You could order a jacket from Peter and consider sending it back for a refund. But, I admit, you won't get that same privilege from Tony since his jacket is totally custom. (Peter makes custom jacket too, of course) But he said to me: "I guarantee you are going love this jacket." He was right.
This is a pic of my Raiders 747 Cowhide Nowak.
And this is a pic of my Nowak CS Jacket
I feel that my Nowak Jackets create my Indy look as much if not more than anything other aspect of my outfit, and they are simply the finest jackets I've every owned.
Daren Henry Wilkerson