I believe I have 4-1/12 weeks to the party.
Its chugging away. With the warm weather, I expect the fermentation may speed up a bit. The recipe called for 10 days ferment and 2 weeks in bottles, but I use a keg. I may have brewed more than I need as I usually use whole hops and this time I didn't. I don't know how much water the whole hops take up - maybe 1/4 gallon?
My OSG was 1.040 @ 88F so I'm in the ballpark there.
As far as the water goes, I've haven't mastered that either. I recently bought the Palmer book that gets into that. Based on the color of the beer and what I see on my water analysis, it seems to say, don't add anything for a lighter colored beer, but that I need to add something (baking soda?) for the darker beer. The spreadsheet looks great. My wife says we get some film from our water, so she doesn't think the water is a soft as the analysis says.