Middle deck for rental boat with KISAKA offset trailer, inspection, high deck

Handmade item. Sturdy construction with 15mm plywood. Base approximately 60mm.
Clear coated on both sides for waterproofing.
Lined with soft marine carpet, similar to what's used for stanchions.
Opening designed to fit KISAKA offset trays, and not screwed in to allow for versatility and transport in a vehicle.
Tray is included, of course. This alone currently costs ¥15,000, so I believe this is a great deal.
Plywood prices have also increased significantly, so this is a good opportunity for those looking for one.

Mainly used on a 12-foot boat.
With foam blocks, it can also be used on a 14-foot boat.

Made about 7-8 years ago for use on a local electric motor-only lake, but I'm selling it as I only use it once or twice a year.
It shows no signs of wear. It has not been used in the rain.

I have made many decks for aluminum boats,
but this is also a homemade item by an amateur. Please do not expect professional craftsmanship.

Due to its size, this is for hand-delivery only.
Location is the central Kanagawa area.
Thank you for your consideration.