I've already purchased the MA-56, and it was a bit expensive.
From a different perspective, since you already have the MA-01 base, you could also buy an M6 to M10 adapter, and the 2.5-meter pull rod should work fine. However, I haven't tried the 5.6-meter pull rod, so I don't know if it's strong enough.😂
Using a combiner to connect the MA-01 antenna base with the PAC-12 antenna:
