1/3 Lino to Range Scrap might be ok. Depends on a few things, but I would imagine you can tweak it to get the most out of your alloy.
As for the mold similarities, the Accurate mold is the only one I have found that is close to my own. And was designed independently of my own design, though I did bring up the similarities when it was proposed. I don’t think MP or NOE has anything similar. Though I’d be happy to send copies to either of them if they wanted to make a clone… the only change I might make these days would be a slightly larger diameter, maybe .312-.313, and possibly doing way with the lube groove and adding a gas check shank for PC’d boolits.