Go to the plant exchange forum.

Best places to mail order the above agaves: Yuccado Nursery in Hempstead, TX and Plant Delights Nursery in Raleigh, NC. Check out their websites. Beautiful, healthy, rapid growing plants.

I bought an Agave on the web 2 years ago. I am looking for it to bloom so I can make this lovely nectar: http://www.wildernessfamilynaturals.com/agave.htm
BUT it has TWO babies. They are free to you if you wish to come and dig them up. I live in the Southern Calif Palm Springs area.

I get all my agaves by asking people who have mature agaves if I can dig up the babies. They make lots of babies and many people don't want the babies because it confuses the form. I get bucu plants that way. Do not be shy. I drive up to strangers houses and knock. offer a trade or offer to pay. Do wait for a rain to soften the soil.

Highcountry Nursery in NM has great special on Agave and cactus collections or individual plants I purchased a large order last spring and everything was excellent!They are on line and have a great catalog they will mail as well.The best find I had last year.

You are probally hoping for exhcanges.
but I find this site to have very large agaves and good prices. I just placed another order with them.

Here is a link that might be useful: Agave deserti and agave americana variegata