Many thanks, it helps to arrive at a choice.
In terms of piers I have just found this Danish company that makes lifting piers/colums that look remarkably like Piertechs Pier tech 2 ($1500, $1750 for 220v).
In fact I read a report on the net about a German guy that disassembled a piertech and found Linak parts in-there.
I communicated with Piertech but they are not forthright on how they relate to or improve on Linak.
The local Linak sales guy is very helpful however and tells me that a DL2 pier sells for 450 Euro ($590) He is bringing me a demo model in the next weeks to try out.