I have a customer with a 37 Regulator bottom painted white. Boat is in water all season here in NJ. Every year it comes back it looks fantastic. From a distance you can't tell its bottom painted. He tells me that they beach the boat a few times during the season and scrub it down. Doesn't know what the shop put on it but I'll ask them. I may be able to get a picture.
I spoke to the shop that services the bottom on this customers boat. It's done in Seahawk Color Coat - Bright White. He said Seahawk has really upped their game in the last few years and this paint is fantastic. The owner scrubs it occasionally during the season and power washes it off at the end of the season. Boat is in the water for the season and on land/trailer for the winter. There will be some light stains at the end of the year. They do one coat in the Spring and are good for the year.
Boat went in the water before I could get a photo.
Paint is ablative self-polishing. Can be tinted for closer GW color match.
Xavier - before you bottom paint you 1.) need to solvent wipe the hull to remove any wax and get it clean and 2.) you should apply a barrier coat (several coats per manufacturer).
No option to rack or lift store the boat in Guinea?