I hope you can get just what you want.
But if you can't, ask yourself: How many months of $9.95 subscription could you buy (what does an Extended upgrade cost? $300?)?
Could you buy the subscription a year at a time, and invest a few hundred dollars in Adobe stock and pay for the subscription for an even longer-term?
And you'll get better 3D support in Photoshop CC.
Just food for thought.