i know there's a layout for the Mad Professor version, but it doesn't really sound like the original BJFE version. the original had a much smoother sound, and was a low to medium gain od, where the Mad Professor can really get up there into higher gain.
i know the layout would be the same as the Mad Professor, but some of the parts values would be different. The original BJFE is considered to be the holy grail of overdrives for bass players, but with them in such low quantities they are like the Klon as far as used price is concerned, so being able to build one would be beyond incredible.
there is no schematic or gut shot that i can find anywhere, but if someone has the needed info to change the Mad Professor Blueberry to the BJFE that would be incredible.
also, Bearfoot just released their version of the blueberry od, that is very similar to the original. a low to medium od that just sounds incredible. so hoping someone comes across this soon, but it literally just came out like 2 weeks ago.