250 hrs? with that much damage to buckets? WOW!
If I were you:
1. check the hydro oil like others said.
2. take a hydraulic reading from one of FEL ports. make sure its not over 2800-2900 psi. I bet its running a mite over 2900 which is how he MIGHT bent bucket.
3. check engine oil , smell it too. check the hours yourself with key off, engine off. test drive it and stuff. shut it off and turn key back on and check hours again. It should gain an hr if you used it with WOT for a while.
4. run engine and note the idle speed and bump it up to 2800. did it smooth out at 2800? does idle sound ok at 850-900?
5.Go ahead and run FEL,BH and note any fluid streaks. if any streaking from fluid, you are in for a seal repacking job too.
6. The fan part is cheap, but do you have the time to take it apart for 2 days if you are not familar with BX or 4 hrs if you are good with tools?
7. If you do want to replace the hood, check with the local dealer and see if he can let you test fit a
BX25 hood. Its metal from what I understand.