Ok so here I am with a 200 lb windsurfer, and a lake 15mins down the road, but hardly any money. But Im not one to jump at making my own if I can buy it for $50, so I looked at roof racks and was totally gob-smacked at the price $400.00. Some-ones bound to have done this before I thought, but most were add-ons to existing bars or for guttered cars or no-way strong enough for the job I had in mind.
When it was finished, this was the business. Wood and steel, cant go wrong. Ive used it loads of times, solid as rock.
[Added]In use: It takes 5 mins to load the windsurfer and is stable at 60mph, which is the fastest Ive gone.
Step 1: List of Materials/Cost/Tools/Time
Tools: Jigsaw, saw, sandpaper, drill, grinder, glue gun, nothing special just the usual stuff.
Total construction time : 1.5 days. It took me about 8hrs actual work time, but I needed to let glue and paint dry