Hi, I’m considering a Ram 1500 5.7 Hemi crew cab 4x4 Laramie to use as a daily driver and tow vehicle for a 7,500 lb travel trailer. I definitely want the 3.92 rear end option and any other towing options available. When visiting a local high volume dealer they didn’t have any 1500’s with the 3.92 rear end. I also didn’t notice any with a trailer brake control or towing mirrors. Are these options typically hard to find on the lot? Do most buyers have to order this configuration? Thanks in advance.