Another vote for the PP rad. I've had an aftermarket one that leaked less than a year in, and I didn't actually see any better temps than with a stock PP. For 1/3rd the price it's a no brainer.If so, I'd get the proper PP1 radiator and shroud.
Are you having cooling issues? If so, I'd get the proper PP1 radiator and shroud. Don't f with aftermarket stuff, the shrouding has to work properly, flow air into the radiator properly.
The proper (OEM) shrouding is just as important, if not more, than the radiator.