To start with, the half-track. This set gives you two large wheels for the front end, the rear gets a pair of exposed tracks. You get two options for the rollers, spoked or solid (bison or buffalo respectedly), offering two distinct looks. The spoked design does jar a bit with the style of the front wheels, but a good paint scheme will blend them in.
|Scale shot with a 40k Rubric marine|
The other kit, the wildebeast, is an 8x8, with four smaller wheels for the front, and 4 of the larger ones for the back. Ideal if you were thinking six wheels just isn't enough.
|The wheels side-by-side with a Taurox, they will fit under the arches with some stick-out|
Much like the original kit you get mounting plates to easily fit the wheels and tracks on the standard axles, making for a very easy conversion which greatly alters the profile of the transport. I would advise extending the fenders on the hull for a more integrated look
If you're after an easy way to convert the Taurox, you can't go wrong with either of these sets. Of the two I'd recommend the half-track. Not only is it a cool alternative to the Taurox track pods, the spare rollers can easily be used as artillery wheels.