I looked in to it, and there really isn't a lot to be gotten out of pumpkin. I did a pumpkin wine, it required 25 lb of pumpkin and 15 lb of sugar. A cup of pumpkin has 49 calories, a cup of sugar has 770 calories.
Pumpkin - 89 cal / lb
Sugar - 1730 cal /lb
Here's the recipe I used ( I did 5 gal)
If you wanted some conversion from the pumpkin you may be able to put some amylase enzyme in, but I have not tried it.
"People should not be afraid of their governments. Governments should be afraid of their people." - V
Secondary: Shady Lord RIS, Water to Barleywine, Pumpkin wine, burnt mead
Kegged: Crappy infected mild
Bottles: Apfelwein, 999 Barleywine, Oatmeal Stout, Robust Porter, Robust smoked porter, Simcoe Smash