Do you want to play bad odds? It's a S L O W Recall as CP4 replacement parts become available. With the supply chain problems getting parts for anything is delayed. You run the risk with a 19-20 CP4 of waiting on lots of parts if the glitter bomb goes off. Further there isn't even a U-Haul available to rent let alone normal loaners and rentals here at this time. Been this way for over 1 year.
Look at new truck prices, if you can find any, NO Discount! and your (and everyone else's) used truck value has gone up vs. it's value in 2019.
Bad time to buy new, worse time to buy used. It's only money, but, money can't even buy you one because they are very scarce. Order one new and hope it doesn't sit around waiting for one part that needs a "chip".