No affiliation but there is an out of box but unused 2 QT Marine accusump kit on eBay, that includes the LN Spin on adapter and the billet oil filter, sandwich adapter, and 35-40 PSI EPC valve. It says "sans wiring and electrical pieces" but there is really only 1 electrical piece, that is the EPC valve. Maybe they mean the toggle switch but that is easily replaceable.
http://www.ebay.com/itm/Porsche-M96-M97-2-Quart-Accusump-Kit-LN-Engineering-Boxster-Cayman-911-/181902852179?hash=item2a5a414053:g:rVcAAOSw5VFWHmq H&vxp=mtr#viTabs_0
No affiliation, and not my listing, but if this includes everything it says it does I think it is the best priced accusump kit out there (counting the ln spin on adapter and billet oil filter)
If I was to buy this I would ask for a picture of everything included, post here and one of us can tell if anything is missing.
Steve