The Micro Seiki arms are very nicely made, and setup is very easy with them.
With the 505 series there are S shaped arms that use standard SME headshell fittings. The straight arm versions have a fixed headshell, but you can swap out the arm-tube/headshell which is removable via a connector at the pillar end.
The 505mkiii is a low mass arm, the rest of the series are medium.
You can buy 441 armboards here
https://www.audiogears.it/category.php~idx~~~231~~LUXMAN+TONEARMS+BASES~.html

