Converting Losi 8B to Truggy

Hi all

I am looking for someone who offers a buggy to truggy conversion kit. If one is not available what do I need? I assume wishbones/upper arms, drive shafts, centre diff mount, different spur? and obviously wheels and tyres.

Are all the diffs the same ratio etc.

I guess a conversion kit would be cheaper but can't seem to find one.

Cheers