I noticed that you have a back port of the mod to b1.7.3, how hard would it be to back port more than just the three bioms? I love playing beta minecraft and would really thankful for it. I could help test and find bugs in any backing that does happen.

Thanks in advance for taking the time to read my request.

The backport was just an April fools joke because people always request backports to ancient versions.
It's not really a backport either, but rather done from scratch with base edits. It's not really something we're looking to invest any effort into, and was just done for fun.