Adding onto this: I was able to use https://github.com/cathugger/mkp224o https://github.com/cathugger/mkp224o to generate my own v3 address with chosen 7-charac

Adding onto this: I was able to use https://github.com/cathugger/mkp224o https://github.com/cathugger/mkp224o to generate my own v3 address with chosen 7-character prefix in just under 1 hour on my i7-8700k I imagine an implementation that leverages a GPU could go much faster.