Want to ask, how much cash have you got to spend on the swap? cause obviously the K is an expensive one.
If you can manage the cost of the swap for the K + have enough money to support a healthy social and normal life than go for that as the engine is brilliant, it includes a lot of work, but when done right you are shown the respect of others alike and it's damn cool to pop the hood expecting a B series to be in there and then you see the K.
Also the K has a brilliant drive, my friend has recently done one and man it pulls compared to his EK9. so up to you
if you havent got the cash, then do you intend to keep the engine N/A or boosted?