Looking to make yoopers DGA

I downloaded yoopers bms file for the dead guy ale and im having problems finding the grain the only caramunich malt that is 56srm is the caramunich III and i cant find a munich malt that is 20 srm... is srm the same as L? is that what is throwing me off? and the only munich malt i could find that was close to 20 was the darg german munich this is on NB since im buying a barley crusher from them i figure i would get a grainbill also i want to order tonight so any help fast would be great

so this is what yooper calls for

12lbs maris otter
1lb munich malt
1lb caramunich malt
.5lbs Crystal/carmel 40

this is what i found on nb

is this the same stuff?

Maris Otter Malt - 1 lb. unmilled
Weyermann Caramunich III
German Dark Munich Malt
Briess Caramel 40L

AFAIK
You want Caramunich II and normal German Munich aka munich II for most recipes. The briess caramel is alright, some people profess a preference for Great Western caramel malts.