Ride On Lawn Mower Castel Garden Twin Cut

We purchased this mower through eBay for £600 several months ago, used it in our garden and it was fab. Always started first time and it s twin cut made a really fast and good job on the uneven garden we have.  Suddenly the last time we used it the blades hit together, piece of metal shattered (believed to possibly be the differential) and a back wheel came loose as bolts loosened.  We have no idea how to fix this as don t know any handymen so are selling it as spares and repairs for someone else to fix.  It has a large grass collecting box on the back which lifts up allowing grass to drop out. Some rust and work needed to the deck.  Been sat for a month now so think battery needs charging.  Viewing welcome before you bid if wanted in Balsall Common.  Cash on Collection preferred.  Please feel free to ask any other questions.