Essentially I purchased aluminum j-railing for ~$2/10 ft, 2 shelving posts/$20, 2 shelve holders/$12, and assorted hardware for a total of under $50.
Laserdiscs were about $6 shipped each except for the most expensive being Flashpoint at ~$18 and Vanishing Point at ~$16. The top row is comprised of the firsts of my new vinyl record collection.