Sorting Sitemap via Categories with Alphabetized Columns

Greetings,

I’m looking for a way to create a sitemap (with our without a plugin) with only my Categories and have them sorted into 3, 4, or 5 columns and have them sorted Alphabetically.

I have found tons of sitemap plugins, but they either A.) only create one giant list of articles under the category, or B.) are completely unorganized in the fact that I will have a ton of categories.

I plan to have almost 800+ categories so if I can organize them in several different columns with maybe a given “A” or “B” letter then all those categories starting with that letter, that would be perfect.

A perfect example of What I would want something to resemble would be something like this: https://sphotos-b.xx.fbcdn.net/hphotos-prn1/66184_10151294236824624_956219615_n.jpg

Any and all help is appreciated! Thanks!

[ Stop bumping. ]