For yrs, this forum has malfunctioned in a way that renders links unusable if the post is edited. You might want to edit your post again to show your link correctly if you're still considering that cage.
My male quaker is in this cage:
http://www.birdscomfort.com/santa_barbara_cage.html As the info on the site explains, these Cal Cages are no longer available, but many others come in the same size, including this one:
http://www.windycityparrot.com/Prevue-4 ... scount.asp This seller is very well known and respected, with a lot of great info on the site about selecting the right cage. They ship for free when over $60, as any cage will be. The site currently says free only 'til Feb 28, but in the past it's always been free when I've looked, so if you don't order by the deadline, keep checking back and it will probably be free again.
Re your comment about possibly caging 2 quakers together. Lots to consider there. Unless you buy both simultaneously from the same breeder, you'll need to quarantine the second one to ensure you don't put your first bird at risk of undetected disease. If you're unfamiliar with new-bird testing and quarantine, you can use Up at Six's Search feature to find our many prior discussions. After quarantine, the 2 birds must be caged separately until they bond. IF they bond. My quakers tolerated each other for 3 years before beginning to fight. I separated them 2 years ago. I'll attach a pic of the custom cage they occupied together. It was a great size and shape, but proved to be very unsatisfactory for quakers in that it was galvanized with 1" square bar spacing. For quakers, 3/4" is much safer. And, because quakers love to shoot poop sideways, best to have as few intersecting bars as possible since poop will inevitably drain down and harden in each weld

The galvanized finish was much too hard to keep clean for a quaker, much less two!