The rest is just a shell game.
That is why I think it is not productive to talk about "fairness". I personally do not think paying taxes embedded in the cost of things is the same paying a tax directly because the line of accountability between the cost and the reason for the cost is broken. This leads to bad decisions on the part of the customer that is paying the hidden cost (i.e. how many people would use credit cards if the 2% fee was added to the purchase price?).
What is worth talking about is how laws and regulations can be adjusted to increase the supply of rental properties. Extending the home owners grant to properties that are actually rented could be one of those measures. Simply eliminating the grant and reducing taxes on properties held like gold bullion would not be helpful.