earbud amp to build

 I am going to try my hand at constructing again. I am regaining my hand eye coordination. This is one I thought about trying  long time ago. The 2SK2539 is a good njfet to work with BUT it is surface mount so will require a mounting surface?

This is a min part count (variety). All the stages using the same parts except R9 of the output stage. It has to be set to bias the transistor.

I put t here so I will not misplace it. Hope to start the build soon.