Well, it's getting close to that time again! I'm sure a lot of people are planning their pumpkin beer for the coming season. If you happen to stumble upon this recipe please give it shot. I have heard from more than a couple people that it is one of the best pumpkin ales they'd ever had.
I'm going to get this beer rolling soon to be ready for October and then probably brew it again in early October to be ready for November/December... it goes fast and is good enough to keep on hand for an entire season
As for an extract recipe, it's really hard to imitate the flavor you get from Victory malt (which has to be mashed.) It provides aromatic/biscuit/nutty/toasted attributes to the beer that you can't get in extract. Your closet bet would be to use Special Roast... though BeerSmith says it needs to be mashed, HBT wiki says it doesn't. But here's the partial mash and an adjusted extract version; only the grain/extract is adjusted. You can keep the hops, pumpkin, sugar and spice additions the same:
Partial Mash
6# Pale LME
2# Pale 2-row
0.63# Crystal 60L
0.63# Victory Malt
Extract
8.25# Pale LME
0.5# Crystal 60L
0.25# Special Roast
For these adjusted recipes I'd recommend using S-04, which is known to have lower attenuation so you can get that fuller body and maltiness you get from mashing at higher temperatures. If you take the S-04 route, try to keep fermentation temperatures low, closer to 60*F so you get less esters and phenols that will cover up the delicious pumpkin pie flavors. That's why I use US-05; it's nice and clean.