Guidance for Forte Audio Model 40 Preamplifier DIY power supply

The Kenwood's no spring chicken either. And the Forte hasn't even been broken in yet.
The Forte is really starting to sing. I had a Model 2 preamplifier and 1A amplifier about 15 years ago that I have regretted letting go of ever since. I was really happy when I found this Model 40 at a yard sale, and it's been I think about 3 years until I could locate a proper power supply for it. 🙂 Now I just need to upgrade my amplifier. Right now I'm using an Adcom GFA-545