[gurps] GURPS: Nightbane?

[Bai Shen]

I like the Nightbane setting, but lately Palladium's ruleset has begun to
wear on me.  I'm looking at converting it to GURPS, but I'm interested if
anyone has done anything like this before.  Anybody started on a conversion
or know anyone who has?

As for the actual conversion, the first snags I've run into have been as
follows.

1.  Immune to Mind Control.  How do you represent that in GURPS?

2.  Immune to Shapeshift.  Again, how to represent this in GURPS?

3.  High magical potential.  Is there a way to do this in the rules?  I can
state it in fluff, but that seems hokey.

TIA.

Bai Shen