Out of curiosity why do you want slotted and cross drilled rotors? I don't think you really need them, standard rotors would do you just as good as those would. If you want them then fine go for it, just don't get then because you think you need them. If you just want them I'd also suggest sourcing them from somewhere other than LMC Truck, you'll save money and have them a lot sooner. LMC truck is great for hard to source items, but things like that not so much. I'm almost 100% positive that you can find the rotors you want, with decent pads delivered for the same price as those rotors from LMC.
I'd recommend just going to your local auto parts store and picking up a new set of blank rotors, the will work just fine in almost any application. You can have both of them in hand on the same day for under a hundred bucks, add on a good set of pad for about another 50 bucks. You come out about 70 bucks cheaper than those rotors from LMC and will work just as well, especially it you ain't running on the track. That's just my 2 cent, it's your money do with it as you please.