HAGGISGOOD--- I'm not sure what size wheels you plan to run, 16" or 18" (your tire size example was a 16", but your 2000 VX came with 18")???
If you plan on using a 16" wheel, then there is only one Mud Tire worth buying-- I highly recommend the YOKOHAMA - GEOLANDAR M/T+ in either LT265/75R16 (32" O.D./47.4 lbs) or LT285/75R16 (33" O.D./51.6 lbs). Why??? "LIGHTWEIGHT!!!"
The Yokohama - Geolander M/T+ is the "lightest" M/T tire made and is a very cool looking tire; however, they are not available in 18" size. Check 'em out at the Yokohama Tire website and pay special attention to individual tire weight.
Remember, your VX came with OEM tires that weighed only 34 lbs each. Consequently, you should focus your search for the most lightweight Mud tire you can find due to "unsprung weight". Having excessively heavy tires on a VX can be extremely dangerous when attempting to use the brakes, as the very heavy tires will want to just "keep going". This is especially true at highway speeds when encountering a sudden traffic jam grid-lock up ahead, and can easily result in you causing a rear-end collision. Riff Raff