Haven't done one yet, but here's my idea for 5 Gallons (via Beersmith)
1.031OG / 31.4 IBU's / 3.1SRM /3.1%ABV
4.75 lbs. Pilsner
.75 lb. Wheat
.5 lb. Munich Light 10L
@ 60 .75oz Tettnang
@30 .5oz Tettnang
@5 1.0oz Tettnang
@5 .5 Nugget
Could be too bitter, of course.