Don't get me wrong Tom makes some damn fine molds and I have a few of them, and plan on ordering a couple more soon.
But he does have some limitations on what he can do as is noted in the quote below taken form his site.
My current tooling is limited to these design features:
* A flat meplat of at least 0.18 inch diameter.
That might be fine with the OP but if he is indeed looking for that Lyman mold as it is, I don't think Tom will be able to duplicate it.
Deja vu,
Your best bet on tracking down one of those is to post up over on Castboolits in the Swapping and Selling section. They have a subforum that is called Wanted. If you post up your looking for that one in particular, and or some of those bullets to try, and bump it up once every couple of days to keep it up near the top or at least on the front page you might at least find someone who might swap you some of them to try out.
Other than there I would check out Evilbay as they are always popping up these older not so mainstream molds. I have picked up a few myself that I thought would be near impossible to find but I did. Don't mean I saved any money, but I got what I wanted.