Last El Paso Saddlery order I placed took about three months but everything was stamped. I hear that now they're quoting 8-12weeks with many shipping much quicker than that. Call them, get your order in, it'll be here in plenty of time for fall.
PS, I love their 1849 Californian for percussion pistols and cartridge converions. Need to take a good picture of mine.
PSS, I wasn't trying to steer you away from Mernickle. His work is excellent, I use one of his PS6's all the time.