Well, no, you wouldn't be giving up 46, because in the scenario I laid out, they kept 46 for White.
Here's the value chart:
2023 NFL Trade Value Chart
If you wanted to get 55, you need 350 points. So let's say you gave up 112, which is 70, you need 280 still. Their R3 at 76 is 210, you're still short 70, so it's going to take another 4th. 107 is 80, so that works, or 117 at 60 points and 192, which is 13 points. So...
The pats trade R3 (76), 2 R4s (107 and 112) or 76, 112, 117 and R6 192 to KC to get pick 55 and select ________________. That's assuming the KC doesn't tell them to eff off on 107, 112 and 117 and demand a 2 next year. Either way, you'd better be damned sure that the guy at 55 is a dude. If you wanted to go higher into the 30's or 40's it's even more. So if we are hearing that no one wants your ****ty 100-120 picks, how are you going up to the end of R2?
Moving up 3-4 spots is one thing, but moving up from one round to another round costs a lot. You best be in love with player X and he better be a lock to contribute at a high level.