Look for a NOS or good used Victor UA-7045. they show up here and on auction sites occasionally, usually from sellers in Australia, Hong Kong or Japan. Watch for a fatigued rubber coupler where the counterweight stem meets the main arm. This and the longer 7082 have a tightly-machined helical VTA adjuster, and antiskate is on a dial atop the pivot assembly. Ultra convenient. If complete it also includes a supplemental counterweight for heavier lower compliance cartridges needing higher effective mass, plus the SPU head assembly puts the combined eff mass when it needs to be.
Phil
Phil