This should work with all of the 406x series. Credit goes to someone on the team DPA group, not me. I'm gonna build one of these for a friend once he gets the cables on his 4060s fixed.
If you build and find any particular capacitors and resistors that sound good, I'd like to hear about them. Many in the audiophile community on audioasylum swear by Black Gate caps in their gear, but I haven't found any recommendation for resistors yet.
Edit: it looks like the schematic is for one channel - you'll need to do it twice in a battery box.
-Matt