Just doing a little looking into recreating this in LTSpice, and I found a new models for the Transistors

http://people.rit.edu/lffeee/CD4007_SPICE_MODEL.pdf

I'll see if I can get this working, and upload what I get

Here's a collection of some of the guitar related LTSpice files for everyone to use

It includes Tube models, from a variety of sources, a guitar pickup simulator, transformers, OpAmps, and my robust cmp files.

Enjoy!