Awesome idea! I like it a LOT! I also like ales, but dove in earlier this year, similar to your plan, into lagers. Shooting for four this year, three brewed already.
What yeast have you selected, or are you getting fresh yeast for each brew? I picked 838, but think I'm going to switch to 833.
How does your existing beer taste? Any flaws? I had DMS in my first two because of problems getting my burner to efficiently burn. Fixed that.
I don't know if i could do a whole year worth of lager, but I like your enthusiasm. I'm not so familiar with all the styles (dunkels, schwarzbiers, and alts) but curious. Not a huge rauchbier fan for the fall, but have you considered a regular strength bock? Another thought, for summer possibly or fall football season, is to do a variation on Charlie P's quarterBock recipe (from the companion book i believe). and make a low calorie bock diluted with boiled chilled water with a portion of the batch since you're doing 10 gallon brews.
TD
Edit - oh yeah, and kolsch is a great one to add to the lineup as already suggested.