Mine broke $20k and i stopped adding up reciepts. but i had to do quite a bit because mine broke pretty hard. expect to spend 6-10k refreshing the engine (if you pay a workshop to do it all). It all depends on what kind of power you want/how strong you want it to be etc....
i would honestly look for one with a blown engine for like 8-9k and sink another 10k into it and you will be laughing.
Edit: An old saying my mate told me before i got mine. "If you can't afford two, don't buy one"
and its sooooo true.