the anchor points are in the top corners of the sides of the load area of the pickup not in the floor , the only options i have seen are from window cleaning warehouse which are a secure frame which is bolted through the floor or bulkhead ,
bulkhead fixture is not an option with pickup as there is a gap between bulkhead cab area and load area ,
and dont fancy bolting through floor of a £17,000 pickup , also afore mentioned frames carry a disclaimer in the pdf file fitting instructions ,
I know a couple of steel fabricators will investigate this week
thanks for your opinion stockclean, MIKE