I just got a 2003 Crestliner Sportfish 1850 with Volvo I/O. I want to add a tow hook and swim platform. Does anyone know if the boats already comes with the bolts for the tow hook ski platform? I see bolts on transom that look like they could be for platform/hook, but i am not sure. I want to know if I need to have a shop install or can I just order parts and use factory bolts. I know the tow hook and swim platform were both factory options. Does anyone have pictures they can send of their set up? Thanks in advance!