Dance Happens the other day and notice a great video she recorded herself about how to make your own custom dance shoes for only a few bucks.
I actually did this a few years back with a pair of my favorite old sneakers. The suede and glue cost me less than $6 which saved me a whole lot of money since most dance shoes are $70 plus.
For Lindy Hop I suggest having both a good pair of slick shoes and a good pair of sneakers (preferably Keds or Converse) for dancing at different tempos or on different surfaces.
Her site is fairly new and lists instructors and events among other things. Give it a look and sign up if you're interested.