I actually don't mind that console style, it's fairly useful - at least it was for my purposes back when I had the '96 C3500 wrecker. I kept my canned Coke in a foam koozie that stuck in the CD-holder insert up front (I notice this one has the somewhat less common actual cupholder insert), and my HP photosmart printer, photo paper, mini stapler, pens, spare rechargeable batteries and charger for my digital camera, etc. amazingly all fit inside the main compartment.
That ad is 11+ weeks old and the price isn't bad for desirable seats and console. It's probably gone, but you may as well try them. I find a lot of people on offerup don't communicate well or keep their ads updated, to the point I hardly ever bother using that site anymore.
One thing to beware of is that console may not be appropriate for your regular cab's floor profile. If it has a pretty extreme angle along the bottom, it'll sit tilted obviously forward with a serious rake in your truck. It can be sliced-and-diced with some care but only if you're up for it. Example on a beat-up one I didn't mind chopping...
Raked profile for extended cab (and possibly SUV's - can't remember what I pulled the console from; been too many years)
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Bottom rear pieces sliced off (you can see the scraps on the worktable) for a flatter profile. I used the pull-out drawer in the back as a guide and cut just below it to retain plastic at the bottom rear so the halves could still be tied together.
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If I recall I had to drill out the rivets in the rear mount bracket, drill 2 new holes in the plastic structure, and pop-rivet the bracket back in. Very simple actually.
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Mocked up in my '94 3500HD wrecker (full '95-up interior swap and '96 Vortec 7.4 swap job), sitting nice and fairly flat on the floor. At this point still needing a solid cleaning and refinishing with SEM medium gray...
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Richard