First of all you have to
read this article about tonearm/cartridge resonance. This will help to select a cartridge for your amr correctly. If your cartridge is made in japan then compliance measured @100Hz, but for correct calculation you must know the compliance measured @10Hz (cartridges made in US already have correct figure in cu, but Japanese must be x1.7 to convert to normal 10hz compliance). Following the Ortofon’s diagram you can see what is optimal or not optimal for your tomeam, but i must take in count cartridge mass, also mass of the mounting screws (they can add mass a bit if you will use heavy screws).
Compliance of madake is extremely low ( 9cu @10Hz) as stated on their website. And the mass of the cartridge is about 9.5g. Seems like you can use it on your arm and the resonance is still in a good range, but the madake could be better on higher mass arm.
The only problem with used Madake is the service, bamboo cantilever is not available from anybody else, so for the service you must be able to ship it to Japan, but as far as i know the do not retip them, they will give you a new one instead, to do so your used cartridge must be from legit dealer. or you will be by your own with your exotic Madake.
Sadly you can’t mount an SPU on your tonearm, because the headshell is not detachable.
Another interesting LOMC is
Fidelity-Research PMC-3 with Contact Line stylus and Air-Core Coil designed by Ikeda-San. Also low compliance and very close to the FR-7f
P.S. Can’t find a compliance figure for your Grado, but all my Grado cartridges are about 30cu (high compliance), if your Statement V.2 is also 30cu then (with 10g self mass then) your 15.5g tonearm is not optimal for this cartridge. You can use the same orotofon diagram to make sure the resonance frequency if lower then desirable range! @fourwnds
However, this is all in theory, practically it can be different to our ears.