I would go on eBay or AliExpress and search Polarstar MR regulator, which should be about $30-45. I'd get the kit that comes with the line too.
Buying an ASA, 1/8 pipe nipple, 1/8X1/4 or 3/8 bushing, 8mm QD fittings, air line, and suitable ship regulator would be more expensive than getting the clone i mentioned above. That used to be the move when there was only Ninja, Valken, and Redline, but now that there are so many regulators with some becoming affordable, that is no longer a good way to go.
Buying an ASA, 1/8 pipe nipple, 1/8X1/4 or 3/8 bushing, 8mm QD fittings, air line, and suitable ship regulator would be more expensive than getting the clone i mentioned above. That used to be the move when there was only Ninja, Valken, and Redline, but now that there are so many regulators with some becoming affordable, that is no longer a good way to go.

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