Yeah i would love to add as many things to the script that would make the experience a lot easier. Issues i can see with barrows repair would be working out how much its going to cost and all that jazz but im sure it wont be too much of an issue.
GE Support is coming along, i have a button to press that will make the script teleport to varrock and walk to ge if its not there already. Then will check bank for items, sell whatever we have.
As for buying, i have made a cache to store your supplies and how many are left, how many you're missing, the cost of 1, the cost of whats missing in the bank - will be able to use this to work out how many we need to buy and how much we need to spend.
Most of the pieces are there its just a matter of fitting them together