I have looked into them also a couple years back but haven’t bought one yet. I took the 6x6 & 8x8 Conquest out for a test run and was very impressed on what they could do but would rather have the 8x8 model instead. The 8x8 handles better, has a smoother ride and can handle more cargo.
I also found the liquid cool engine to be nice and quite when running compared to the fan cooled engine. If you have intentions on getting the tracks you will also have to get smaller tires to suite the track that I think comes as a kit. The tracks would also work well in swampy land.
If you have the opportunity to look at the video and take one out for a test ride, check it out. These Argos are a little slower and larger then quads but they can go places quads wouldn’t even attempt. I don’t think the rhino would even come close in comparison to what the Argo can do. Good luck...