Generally, I would use all Weyermann Barke Pilsner with some Munich Malt and maybe a bit of carahell. This was kind of a "use up the last of several sacks of grain" beer. That is why it is a weird combo of grains.
This recipe is scaled to make 9 gallons of beer in a 10 gallon pot. I start with 9.5 gallons, boil it down to 8.5 gallons. I ferment in two 5 gallon corny kegs. Each Corny keg already has 1.25 gallons of preboiled, treated, chilled water. I brew the beer above gravity, bitterness, etc. knowing I will dilute it back down when I add it to the fermenter that already contains water. This allows me to brew 9 gallons of finished beer from one brew session. I usually only use this strategy when making lagers as it is nice to finish with more beer from the longer process and I can also fit 4 corny kegs in my fermentation freezer.
- I point this out because the volumes and amounts will likely look strange if you are trying to brew it. I would recommend going off of the percentages and scaling it to your system/volumes.
