Both the BH and FEL are removable and are relatively easy to remove. I rarely take the FEL off while the BH and snowblower change every summer/winter. Front to back measurement, that depends how you want to measure. Some get by with a 12 ft trailer with the FEL hanging over the front or the BH out the back. If you were trying to put it in a garage it would need to be close to 15 ft to be able to close the garage door. Itís funny because with the FEL and BH off, it is marginally bigger than one of the larger Craftsman tractors you see at Sears, but it alone weighs over 1600 lbs.
Your trailer wouldnít work, not so much because it is 10 ft, but for the weight. Donít know what yours is rated at but as a single axle, I doubt it will do. The BX25 with BH and FEL attached are about 3300 lbs. If the MM Mower is on, thatís about another 220lbs