I am in the market for an 873 and want to get a backhoe attachment for it. Couple of questions for the more experienced. I am only going to have one machine so the attachment is how I need to go. 6' or 7' is probably plenty deep enough for me but if a 9' became available at a good price I would do it also. It will mainly be used right now for trenching my electric and water lines 600' for a new home and also for putting in a septic system. Obviously I have found the bobcat brand ones. What about Erskine? How about some of the people who make them on ebay? Any good experiences with other manufacturers? About what am I looking at to get a decent one? Other questions are is it worth it to pay more for one that swivels 45 degrees or so versus moving the machine to dump? What are the pros and can of the ones which hook onto the loader arms so I could stay seated in the bobcat itself? Sorry for all of the questions but I am new to this and there seems to be lots of knowledge on here. Thanks for any advice.