Where do I find counterweight for EMT 948 in USA

I am looking for a counterweight for the EMT 948 in the US. I have seen ads for the Expressimo counterweight. Will it fit? Is is a good substitute. Also anyone with experience setting up the tonearm, please help. I can read, but would like the chance to ask a few questions to someone who has done it before on this table.

I'm also looking for the antiskating weights. Any available? Anywhere?

Thanks I can use the help.

Bill