What budget donor microphone with headbasket working with M7?

[evil grill]

Hello there!
I'm looking for microphones with headbaskets working with M7 capsules. Preferably choice of pattern and good electronics that need little or no modification, since my time for tinkering is very limited nowadays.
I've been thinking of Studio Projects B3 and Behringer B2 Pro. I'm right now leaning towards B3 due to the headbasket.
Can anyone give me tips or advice?

 

[kingkorg]

B3 has the right shape, but wrong dimensions. It is too slim to give the same effect as the original u47 headbasket. B2 is not of the right shape, but is more transparent, and will affect the sound of the capsule less than the original or the B3.

With B2 (older model) you get the detachable headbasket, which means you can swap different capsules with different circuits.