I've been buying DKOK stuff for a while now, and am only now getting started building it. My first task was to build the single LR chassis that will be part of my 1500 pt force. I am going mainly with centaurs, but want one LR. The old FW kits do not fit on the new model without some work. The good news is that it is not particularly difficult. The engine filter requires a portion of the back engine cover to be sawed off. The trench rails simply do not fit. It turns out the FW full kit has a resin engine area. The tank gunner works, just not with the cool FW hatch because the new LR kit has the turret modeled on. I am luke warm about losing the more interesting turret, since it has more detail, and helps make the tank look more interesting. In any case, I am happy I bought the upgrades. I think they add a lot of character to the tank.
My plan is to run this as a regular old LR with battle cannon, hull las cannon, and bolter sponsons. It will support a static line of 2 teams of 3 heavy stubbers. Grenadier squads in centaurs, hq in centaurs, and quartermaster in centaurs work as my ultra fast open topped gun platforms. A single squad of engineers and death riders bulks out the army. Most of the army is made up of AP3 weapons, so it should be pretty fun to play SM. The centaurs have a built in gun mount so the heavy weapon from the squads embarked can fire. That gives me 2 heavy stubbers per centaur.