I think you could easily give them both a shot - with those trunks, the price is just right and may be even on the low side. However, I'll say this: depending on what you want to do with them, the first one pictured looks better than the second one.
A little hard to tell from the photos, as we can only see one side of the tree, but going from what's there, the branch structure on the first appears that it would allow you MUCH more room to create the kind of tree you want to - more branches, thicker trunk, more foliage closer to the core.
The second is not bad by any means, and the top of the tree looks nice and compact. However, the lack of lower branches in the upper 2/3 limits your options, and the placement/fact that the foliage is very far from the trunk on it make it far, far more challenging to compose, IMO. Not at all that you couldn't make something beautiful out of it, just that the time and effort required might not be worth it for your first couple shimps. Might be quite a while until you can "learn" much from that one by doing.
Really terrific finds.