Anythings possible but you would need someone who knows what they are doing, be aware that generaslly mileage can only be increased and not decreased so if the one you buy is higher that your current mileage that may be an issue, i think there are some people that can do mileage in either direction but not sure how common it is so will be worth double checking
Another thing to note is that the dash cluster holds your immo data so when you change clocks you also have to reprogram all your keys, if you swap the clocks yourself you wont be able to start the van after