I really MISS PhotoShop 7 on my Mac for U.S. Patent drawings

I've been using PhotoShop since about PS3 in the late 1990's.  It has been my go-to package for scores of drawings in 11 granted U.S. Patents.  Since my patent work is proprietary, I don't trust or use the cloud.  I got tired of screaming at Windows and slowly switched to Mac, mostly minis, starting with the PowerPC version.  So now I use PhotoShop 7.01 on a Mac M2 mini using CrossOver.  CrossOver doesn't fully support PS7, and sometimes the glitches are even worse that dealing with PS7 on my faltering Win7 computer (now out in storage).  I could learn to use Gimp, but have strong muscle-memory in PS7, and I've gotten way to old to learn new things easily.  

I really, really want a full-featured, stand-alone, buy once version of PS7 that runs securely, reliably and natively in MacOS on either Intel or Mac silicon.