Why busy so many people with collecting money and probably sending it back when you do not know yet whether
a) you can buy the source at all
b) in what constitution the source is
c) how much money is asked for it
d) it is worth that amount of money
so all in all whether it makes sense to even think about it? Starting with steps 5, 4, 3, 2 before having done step 1 just busies and worries people.