If you’re PMing that project and you and no one on your team has that experience, you should consult with someone who does. Feel free to PM me, I do shipyard project management work. As someone else said it all comes down. To where you’re doing it and the scope of work, start there.
Remember; there are always surprises popping up when repairing/converting ship/boats. The older the ship the more surprises.
Do a detailed survey of the vessel. Get professional help if necessary.
Prepare a detailed list of items to be repaired / conversions to be done. Include EVERYTHING that MAY be necessary.
Go to 3 or more shortlisted shipyard and ask for offer. Ask for itemized price for each job on the list, not lump sum. Adding item/change orders are expensive. (bread and butter for many yards/workshops)
Select most suitable yard based on time frame and reputation for quality, not just price for main items
As job progress and condition become better know items may be deleted from list. (Easier and cheaper than adding items)
Professional supervision and daily progress meetings are important
PS> Remember to check the bill thoroughly before signing off at completion of the job:
Thanks everyone for their input. I know the question sounded stupid-we are just getting a handle on the process prior to actually being in the shipyard. Like I said we have experience being in the Navy guiding workflow once we’re laid up.
The key document you need to produce is what’s known as a Drydock Spec. Typically it’s kept onboard as a running document (ideally) and is finalized leading up to a refit by the Chief Officer and Chief Engineer. It contains a detailed report of all the work that needs to be done. Shipyards can use this to give a fairly detailed quote.
It sounds like the ship may not have a dedicated crew right now so you need to track down a ‘Drydock Superintendent’. Most companies have one and organizing yard work is their specialty. It is absolutely essential to have someone familiar with the work before undertaking the project. Would be very helpful to hire an experienced Chief Officer who could get a start on the spec.
Nowadays your problem is more likely going to be based on yard availability rather than cost. Best of luck to you.