Sold-Seawise Hydraulic transom davit $2500 obo
Seawise Slimline Hydraulic dinghy davit system. $10k new, $2500 obo.
12 or 24 v hydro pump (nothing special)
A great deal for a DIY person out there willing to do a bit of legwork.
PM for pics (I can't figure out how to load them here).