Should i get extcommands+ and a melon sword (i've already got 600 nstars) or, should i get fly and use my pumpkin axe? Which one would make more money?
Well, a mix of both in my opinion. I use fly (Because /speed .585 is the speed you break melons at) and ext commands to repair, while melon farming.
With a melon sword you can break about 1200 melons before having to repair it (That is at least the number I always use), this means you get $2400 before needed to repair, and then buying a repair which is normally about $200. I suggest purchasing fly so that you can use either method to make money. For erepairs I recommend sprayware she is a very trustworthy user, and does repairs on a tip basis.
Oh right, well you still make plenty of money, I personally make about 15k per hour (I dont purchase repairs of course).