I purchase this used pfaff 335 clone, head only from Tomsewing for 420 USD including shipping to Norway. Then got a 650w servo motor from aliexpress for 140 USD and works like a dream.
No issues whatsoever with Tomsewing in mainland China. Good communication, paid with PayPal, and shipping by DHL, in wooden crate box. Tracking number provided of course.
They have a enormous amount of different used and new sewing machines at very low prices.
My main sewing machine is a durkopp adler 267-373 purchased in Norway, got some really good advice and help from @Thor and I'm really happy with that sewing machine, but had I known about tomsewing before I bought my very first sewing machine (a sailrite ultrafeed clone) I would have definitely purchased a "Tomsewing" machine from the get go..and would have saved myself quite a bit cash along the way..