Yeah a 6630 with low hours would be fair money, considering Claas as well, good value for money second hand and good back up locally.There probably isn’t much wrong with any of them really. Lot of it is luck sometimes. And a good percentage of breakages I always think have a fair bit to do with how it’s treated. A low houred 6630 would be fair money I bet. If you can find one. I bet you won’t have lost much on your current one.