No core charge.
Have the e-mails if you would like to make sure I'm not pulling your chain.
As for the bell housing being 1:140, that all depends on final cost to do the improvement. Not to mention more and more Spec V transmissions are becoming available so who knows will do this.
I'll tell you what once I get close to that part of what I'm doing I will let you all know what I come up with. The best part of being in an engineering field is I have a lot of friends in Aerospace, Manufacturing, and Machine. So I have semi access to big CNC machines to get prototypes up
. Granted this is down the road for me, but there you go.