From what I have seen it is up to Miha when he decides to make what mold he desires. Some take over a year and some done in months. I believe it is a one man operation. I have two of his molds and two more that are being made. There top quality. You can send him a PM on castboolits to see what he has on hand. Here is a link to one his molds on ebay. MP Molds 452 374 Brass 4CAV Mold 230 Grain Round Nose Flat Base | eBay
I'm on two group buys. One is over two years old. I have been on a few others and dropped out...those buys of course have closed and the molds delivered.
It it looks like here recently more molds are being made than I've seen the last few years so maybe he has ramped up production.