The 69 and 70 kits were limited to 5,000. I have heard the 71 and 72 are not limited edition, but one seller on eBay claims the 72 is limited to 4,000. I doubt that.
The 72 should have the same steering wheel as the 71. It is also a little annoying the box art shows the trim correct (there is a piece behind the rear wheels) but the box truck and the kit are missing this piece. Oh well, I guess it gives me an excuse to start minor resin casting. I needed a long bed 72 anyway so I guess I will buy another 71.
Kepley has some interesting stuff in their junkyard you can see from Harrison Road. There are at least two B model Macks at the top of the bank, there was one at the bottom but it disappeared.
That 56 truck has a lot of subtle changes, such as the front fender openings being moved forward. It would be hard to build stock but it's a really good looking truck as it sits.
Looks like the 72 Sport Custom is a short bed with a small block Ford (302). I was hoping for a long bed with an SBF to build my dad's truck, looks like I have to buy another 71 but at least we have a different engine. http://www.clubmoebius.com/ProductDetails.asp?ProductCode=1220