I think, very hard to create alternatives from this set. The most problem is that fixing of the wheels. It is only one possibility. Four 1x4 Technic briks and two Technic axels. The power of the set is in the many (8) brackets.
Independently, you can build good alternatives. Like this from Cedric
When I created this model, I gave up one of my important concept, that the model must be stable.
Quoting Henrik Jensen
Nice Little truck! The drivers cab looks really great, but the chassis looks a bit thin.
Are there parts left for a fuel-tank?, maybe it could fill the gap between the front and rearwhells.
Thank You! Unfortunately, 6 of pieces left only. 4 of this pieces is technic bush.