It's true, the old Tamiya kits, specifically the M41, can be a fun build and with just a few improvements be built into a nice model. The M41 is also so inexpensive it can be used as a test bed for different techniques. I had the one pictured mostly completed and needed a way to try some ROK camo for an M47 build, and decided to have fun as well. I used the AFV Club tracks and had a blast.
IMG_0578 by Russel Baer, on Flickr
I have $9 in this model.
I got the kit for $5 at a show, and the tracks for $4, same show different vendor.