1 Material and labor for a wood retaining wall runs approximately $20-$25 a square face foot (and there's usually a minimum charge for small projects), which would be about $1,000-$1,300 for a 50-square-face-foot wall. Materials and installation for a stone retaining wall start around $25-$40 a square face foot and go up depending on materials, site conditions, and other factors.
MFWD (mechanical front wheel drive) or front wheel assist tractors generally have smaller tires on the front and the front axle can be mechanically disconnected from the rest of the powertrain in some manner or another.
The GVWR is the weight rating the axles underneath the trailer are capable of towing. The GVW (Gross Vehicle Weight) simply means how much weight you are towing including the weight of the trailer, horses and gear. All weights below are approximate and can vary from your actual trailer significantly.