I got in the middle of this since I know both parties, and my suggestion to the person who owned the pinstripe was to keep it, breed it and sell a few babies and then buy a pastel calico.
It's a very nice pastel calico but letting go a breedable morph female?
No way this time of year a breedable pinstripe would go out my door to trade for a pastel calico baby.

Is the trade fair?
IMO the pastel calico is worth about the same as the pinstripe, but it makes little sense to do that trade when you could breed the pinstripe and make enough to buy 2 or 3 pastel calico's and still own the pinstripe