Analog Expert, please help me

My new cartridge : Van Den Hull Colibri 1.0 Mv is on the way as well with my turntable Aries with JMW 10.

I know that the Colibri need low effective mass arm and i know nothing how to count the effective mass.

Is the JMW 10 pefect for the ultra light Colibri ?
Could someone let me know about the effective mass JMW 10 or JMW 12.5 !

I really want to upgrade to JMW 12.5,is that better or worst ?

What the best preamp for the colibri under $4000 new/used ?
Is the Sonic Frontier SE 1 perfect for the Colibri ?

Thanks and i really appreciate any comment.