Really quick question ... D5.x

Hi.

This looks awesome!!!

I'm sure a D5 backport is probably not high on your priority list ...

But I'm curious. If I can find someone interested in doing it (I'm not a coder), do you have any sense:

1) of whether it might be very easy or very difficult?
2) If difficult, are there any obvious "gotchas" or problems that you might know of from your experience?

Thanks in advance for taking a moment.