I could do the handel and I can tap the threads I will have to look at it and do some measrements to see what all would be needed to tap it for the stock cocking rod. I migh tnot be able to do that part because my drillpress is not tall enough. The price would be chaep. probably material, shipping and $25.
I'd even be fine with a shorter pump handle if that helps with the tapping. I'm jealous of your tools, sir! I WISH I had access to those things!
Here's one more for you... Can you also make an Lstock(straight stock off the gripframe, no angle, with an 'L' going up 90* at the back end? Or a Tstock if it's easier. LMK, I'll be happy to throw the money at you for this stuff.