Suggestions for new design Aluminum Mopar SB clean slate (kind of) cylinder heads

Could he??? Yes. Should he??? No. Sometimes it’s better to start with a “clean” sheet of paper when you want to make several changes. Higher rail here, more material here, different bolt pattern here. Next thing you have is an abortion that looks like a moble home that you put three additions on.
Once you have the desired port shapes sure the rest would be drawn up in some computer program making whatever mods and compromises necessary.