The one i have is B40 GA290
I had a look today and so far the major bits that are missing is the barrel and i cant seem to see a clutch basket. Theres one push rod that i can find so far so one of those might be missing but new push rods are availble. There is a spare head and a spare primary cover. Its going to take me several hours to sort through a few boxes to piece the gearbox together as its all mixed up with some C15 stuff and left over B44 stuff. Im not sure why there is no barrel, there really should have been one. Since i havent got one let me know if you are still gonna be interested or not and if i should continue piecing it all together. Ultimately this stuff is no good to me so it has to go sometime but im not going to give it away either as we are talking english stuff here and not garden variety RM80 or DT175 stuff
. i also have a C15 right side engine inner and outer cover and theres a box full of odd C15 bits.