There is no work taken place on number 3 or 4 as of yet,as they are concentrating on number 2.
I have no real idea how long they will take to finish.At a very rough guess I would say between 3-4 months considering how long it took to build the first 2.(even though the accommodation block and holding pen is done as in photo so this will shorten the finish time considerably I bet.) But we are getting towards the taile end of summer so the weather will probably hamper them shortly.
I have no idea on the money veeboy31,i'm not there financial advisor or bank manager