5th wheeling

hello, my wife and I are thinking about upgrading to a 28 ft 5th wheel.We recently sold our home and are living in a 24 ft travel trailor. we are using our family suburban to haul it. I would like some advice so here goes:

1. will a 1994 GMC 454 with a 410 rear end be strong enough.

2. Any other advice and suggestions would be greatly appreciated.