Dave, you might want to look af Carefree of Colorado, They offer just the electric arms for 5th wheels, you use your original awning and outer tube, just replace the arms and install the electrics. Not sure if they have one to fit your rig, but I know they have them for the 3400. They're called the Traveler Arms. You can check them out at
www.carefreeofcolorado.com Quite cheaper than a totally new awning. If and when mine blows away we will replace with the Carefree Brand.....(come on wind!!!!!!!!!!!!) I see they now have an adjustable pitch feature also...... The Cadilac....