1) Put the clubs on the floor against the front seat if just going to the course to play. Otherwise, pull the Driver/3 Wood out of the bag, then place the bag across the back seats with the backs folded down. Then put the Driver/3 Wood catty (caddie?

corner from the floor behind the drivers seat across the back of the passenger seat. I've gone hundreds off miles with two bags back there that way in my 996's and 997's.
2) Cant' help with the doggie hair problem. I can tell you that once it's in there, you;ll never get it all out of the nooks and crannies.
Welcome to Porsche!