Pick 51 is a nothing pick, doesnt hold any real value. If 11, 12 and 18 are on offer for Bolton and Baker, I would want a pick around 30 back to even consider it.2 points.
Firstly, those picks will all move back by the time they're used in the draft, so it's probably more like 12/13/21
Secondly, Richmond and Freo are positioned on 12/13 and 12/21 for Bolton currently...split the difference and Baker becomes worth ~17. Throw in a late pick like 51 (which would become Freo's 2nd pick after this) and you'd be looking around pick 30 in value.