Even if you have bills that doesn't make change, you can make fake a bill that will just give you an extra investigation which lead you to massive headache. If the guy is not top pro in my opinion there should be a cap - it's simple to ask Chat GTP question regarding it " How much pro bike cost to repair per year " then you got amount obviously because it's not the top of it then you slice amount by 40% and there you go, this is the way how you cap it. Btw where we can check progress competitions and so on ?