I guess I will satisfy myself with an uppercase address then. No need if you are trying to make it ready just that I had requested. Anyway curious about the software you developed. Also mind telling me what is the difficulty of such addresses ( I mean one you are doing it right now) and power you are having.
The difficulty for all lowercase, no numbers except for the leading 1 is about 1.16x10
13, and for all uppercase, no numbers except for the leading 1 is about 2.81x10
12. I do the computation on AWS. The software is based on libsecp256k1. The free addresses will all have numbers mixed in.
I am not sure what the difficulty is for the addresses with numbers mixed in, but it generally takes me under a minute to create those.