Hopefully this finds you well and with availability of space and personnel in your Tsukishima yards to accommodate this request.
We have a tired Shukensha Liner that is destined for incorporation into the Orbital Spa and Cruise prestigious White Star fleet. Whilst our own yards are more than capable to do the work, and will do the cosmetic outfitting, we felt it was fitting for the deep mechanical overhaul to be carried out by the original makers.
If possible we would request a time slot and quote for a complete "nuts and bolts" overhaul from the keel upwards. The liner is currently entering Shikoku and can be at the yards imminently for inspection in order to cost and discuss further this request.
I am not aware of anyone representing IC or the yards but would welcome anyone stepping in, potentially even with material deliveries etc. if they have a nearby POB and want a small forum RP.
Companies who are heavily "insurance" based often have a need for invisibility. Just pull up to the yard and ask there, off the books are often encouraged.