I have for sale a great little Kubota mower. It has a 60 inch deck and is 4 wheel drive. It is a model GF1800. Kubota still makes this model and it is currently selling for about $25,000.00. It has a little over 2000 hours on the clock and starts and runs well. It will mow our 2 acres of lawn for many weeks on a single tank of diesel, very efficient. The 4x4 works great and is a real must for mowing out hilly yard. The main reason that I am selling this is to get a mower with a narrower deck. The 60" deck is just too wide for our VERY rough and uneven yard. This mower may need work done to the front drive shaft in the future. It has a vibration at times.
The mower is about 8 feet long and overall deck width is 63" so that needs to be considered for your trailer.
Don't ask if it's still for sale. If you are reading this ad it is still available.