Slight update and I made it so it is verified - I can't edit the first post, but you might notice that the volume pot is incorrect in that one as is the wiring for the trimmer
used BC548 for Q1 (different orientation to the 2n5088 ) and it works great

really like this
used 22N for the filter cap, could probably go up a tad more. It really needs this imo, although I guess it depends on you amp and guitar as well
Here is the verified layout.
