Dear Shoe, yes we can get gypsum over here! A lot of the areas in and around London and into Kent are covered with River silt from the Thames and Medway. This sits on top of clay, either normal brown clay or the dreaded blue clay! That lots then sits on top of chalk, what a mixture! So our pH is high anyway, and needs bringing down. We do have a lot of acid soil areas, and indeed peat bogs and heathland! Everyone may think that the UK is a large place, but no matter where you are, for in the middle you are never more than 66 miles away from the sea. From Cornwall (Lands End) to the very tip of Scotland is only 867 miles long. In the UK we have every soil type you could every think of. Kent also is known as the garden of England and has some amazing loam soils, ideal for growing just about anything!
Keep well!
Regards from a humid England.
Neil.