The Clodbuster is a great truck for modifying. The best parts, as you have noticed, are the axle assemblies. The plastic tub chassis and the stock suspension leave a lot to be desired. This truck has been around for about 20 years. There are a lot of aftermarket parts for them. Before, it was to create a better handling Monster truck. Now it seems they are being used for the Super class of rock crawling.

Over the years, I have had 6 Clods. They are a blast. I would start with a Super Clodbuster and modify as your budget sees fit. One thing I highly recommend is to buy the bearing kit before you assemble it. You can easily pick up just the axle assemblies and then go to the aftermarket for the chassis and suspension too. That is all up to you. There are a number of sites that are dedicated to the Clod that have a ton of information on them. Take a look at Clodparts.com. That is an excellent source of learning what a Clod can become.