I am trying to figure out how to build a cheap, effective floating manufacturing platform.
One idea is to start with 2 120’ long hulls possibly ferro concrete, what ever is the cheapest. Then cover the hulls with 12 60’ long shipping containers making a flat working surface of 120’ x 60’ on top. I bet that much could be put together for around $100k.
Add a covered and enclosed 20’ tall structure on top with lifts on the beams turning them into cranes, add a generator, storage tanks, electrical etc. for another $100k and you have a finished facility with an office and living quarters.
On land in Florida next to the ICW that facility would cost about $1.2M and to rent it would be about $10K a month plus expenses and taxes. That would give the facilities owner about an 8% return on their investment.
Charging $4k a month for the floating facility would generate close to a 20% return on the investment. Anything better than a 12% return on their money will make investors sit up and take notice. Of course we are dealing with a depreciating asset (boat) vs an appreciating asset (land) so that needs to be taken into account.
It would need a calm mooring and access to a dock and few legal restrictions.
I would be willing to pay $5K a month to lease the facility for a couple of years and I know other people who would be very interested in the same thing. It would even be better if 4 of these units were rafted together making group projects easier and faster.
I am also sure that there are even better cheaper design ideas than this.