Go for it. Bigger is ALWAYS better. We started out with a 2004 Dodge Ram 1500 Hemi Quad Cab 4x4 and a 2006 Coachmen 25 RKS TT, about 8 months after buying the TT we upgraded to a 2006 Dodge Ram 2500 CTD Quad Cab 4x4 and then about 5 months later we upgraded to a 2006 Keystone Outback 30FRKS 5th wheel which is 33'6" long and the truck tows it like thier is nothing back there unless you are in the mountains. This Saturday we pick up our new 2010 Sandpiper 356RL 5th wheel which is 39'4" long, a real monster. Towing a 5th wheel is way easier and better than towing a travel trailer. You get way less sway, wind affects you alot less and they are easier to hook up and unhook and also easier to back up into your spots. Go for it and you'll never regret it. You will be amazed at how easy that Wildcat will be to tow, I agree with rafcar, if you think you might want bigger it will be no problem at all to tow it with the new truck.
Carey & Theresa & 3 dogs Lucky, Shannon & Coco
TV 2006 Dodge Ram 2500 Big Horn Quad Cab 4x4 w/5.9 CTD DrawTite 16K Double Pivot Slider Prodigy Brake Controller
5er 2010 FR Sandpiper 356RL w/Satin interior Signature Package