Spartan castle motor blown?

[Dudleydoright151]

Took the new to me spartan out today and it ran great but after about 6-7 minutes with no wot runs just trying to get used to it the motor started sounding bad and loosing power so I brought it in pulled of the lid and the motor shaft has a wobble in. After pulling off motor and plate bearings were loose inside, is there a rebuild for this castle 1800- 2240kv? If not what would be a good upgrade for the stock ESC this is my wife's boat and just needs to be very reliable and not the fastest thing in the water. I was using two 3s 3300mah lipo's at the time of run. Water intake was flowing good through esc and motor.