Is there a full list of all the upgrades available for your UBoat in SH5?

[Akula]

Hello

I wanted to know the full list of upgrades available to purchase for your U-Boat.

Is it available?

I was particulary intersted if the Alberich coating is in and if the sub skin represent that?

Thanks,
G

P.S on another note and instead of adding a new post, does the subs have the winter ice as on other ships during winter as well?