I
Ian
Welcome along. Did the company you purchased the tiles from provide the tiler to do the fitting for you? Also could you not replace the very worst ones and repair the smaller holes? If you could post some pictures it would help to see how bad your situation is. What is your location? It might be possible for somone to come and look at your floor to give you some advice, you don't want to cover it all over if it's not really necessary.