Would love to take a gander at your alt recipe!
It is an evolution for me as I brew and adjust, so here is what my next Alt will look like:
49% Weyermann Pils
49% Weyermann Munich I or a blend of I & II
2% Carafa Special II
30ish IBU German noble hops (or similar) first wort. Spalt, Hallertauer M, Tettnang, Saphir, Perle, Saaz. All should work fine.
Sometimes I add a later charge around 15 minutes, sometimes not.
Imperial Dieter Yeast
Ferment on cold side of range 60° - 62°