LOL..your the 3rd guy I've seen trading "down" from a 2019 to a Gen 1...which is actually trading UP..!!
I know I'll get all the comments about how good the Gen 2 is,but my Gen 1 has been the best truck ever.....
With that said,your gonna get dozens of replies....and figure top will be Shocks,and change the Plugs if not done...
I only have 62K on mine,so hard to compare...but its been problem free until last month...when a damn mouse chewed thru injector wire...NOT Raptors fault,but had it towed to my Mechanic to find the problem...and since I had bought a new Differential cover to put on,figured just let him do it....I had noticed the "road" noise seemed to be getting louder....figured it was either my ears or the tires....but it was a bad Pinion Gear...so had the Differential Rebuilt....
So,while driving make sure its not too loud back there..AND...if they are going to service the Diff.,I'd upgrade to a good Cover with a drain plug...this way you can change oil really easy....
I went with the Dana Spicer which is THE SAME as the FORD PERFORMANCE except for the name tag and double the price...Rock Auto had it for around $130.....if you buy the 'Ford" its going to run $270-ish....
Good luck with your trade.....!