[rdunk]

Beachgirl Quote - I see that the dealer we bought out TT from carries the Husky rails. But I'll first call the dealer we are buying the MS from- he might have all this hitch stuff covered." :)
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Yes, installation of the hitch, including the rails, should be included in your Suites sale package. Most dealers will probably have the Reese rails in stock, and they will work just fine.

Note, you likely will not know for sure what the truck bedrail to 5er spacing is going to be, until the dealer gets the hitch installed, and the weight of the pin is on the truck. But if your hitch installer knows what he is doing, he can make a pretty good guess regarding your need for spacers, as he installs the hitch. RodeWorthy is probably right about the spacing needed.