In theory, it's always merely a matter of how hard is it to do. Removing a drive shaft is perhaps not hard for a mechanic with 20 years experience, but it's more work than most folks ever want to undertake, and it is certainly more work than having a toad that doesn't need the drive shaft removed. I had a Jeep Libby 4x4 that had a neutral position on the transfer case specifically to enable towing 4-down, but your Nitro evidently does not have that feature. I kind of agree with @Ava that you might find it more enjoyable not having to deal with the dolly as well as put the drive shaft back in. It's up to you.