There has been an improvement regarding trailers in the shop – their capacity is now displayed correctly. However, I don't know why nothing has changed on my end when it comes to the selling prices.
I don't get the £/ton display at all, the additional HUD elements don't appear, and crop prices are still shown in liters, with prices displayed as £ per 1,000 liters.
I enabled only this mod, and it showed that I was using version 1.2. I have no idea why this is happening.