Looking for a grip

For many years, I've loved the look of the LR-300.  One of the unique things about it seems to be the grip - if it's not a model-specific grip, I've never found it in my searches.  Occasionally, a full LR300 comes up for sale, (like the $10k one on GB right now) but I'd never get one in NJ - defeats the purpose entirely (it's a side-folder piston AR type) even if I could spend the usual going price.  In the meantime, I'd love to have an LR300 style grip on mine.  I'm guessing it's an exercise in futility, but I'm thinking you guys might know somewhere I haven't looked.  ZM is, as far as I know, no longer in business, so that's kinda a dead end.

I am looking for this style:

I'm thinking I'll have to make a cast of my airsoft version and try to figure out how to mold it around an A2 grip or something if I don't find one.  They are strangely comfortable.