I can sell AF3 base for 1400,- eur (may be 1500,- , as prices are increasing)
AF V bases do fit as well, current price is 1100,- (soon 1200,-)
(from German distributor)
You can use all Micro Seiki AX bases, same fitment as with AF V, do fit AF3 and AF3P as well.
Depending on tonearm and Cartridge you can choose
Spot on people do not realise the effect on arm bases eg one of the worst bases for the sme 3012r are aluminium in my opinion in this case I prefer brass and in some systems coupled with ebony. Systems play a big pat too on the influence of arm boards.
I generally find mixing materials works best in some instances could involve many materials, I came up with a base for a emt927 that involved a pod that had brass,jade,ebony, delrin and aluminium I played with 90 different materials the top plate was brass and a crazy solid gold inseert, but then the finishing of the board also plays and impact on brass and aluminium I like crome for speed and agility for sweetness and midrange bloom 10 microns of gold with a under plate of copper and nickel works a real treat.