I have not looked at what comes in the base truck for the 10k increase but I'm sure it isn't worth it to me. A base 2020 crewcab was 55k now it's 65k thats to close to the base TRX 72k. IMHO ford screwed this up
5.0 for the sound, but don't think you'd go wrong with either. Why the change from the tremor? Better mpg, comfier ride? I'd love a 7.3 tremor at least I think I would never driven one.