I would just order it from Amazon. A few months ago I ordered 10 THC only dip tests for $8.79, including shipping, and I believe they are very accurate. I tested positive for the first couple weeks, and then tested negative with the third test after about 20 days.

You can get 5 panel tests, which test for Klonopin as well as THC, for $18.79 for a set of 5 tests.

For a 5 panel test the link is:
Amazon.com: Six Drug (THC/Coc/Opi/Amph/Mamph/Benzo) Dip Test (5 tests): Health & Personal Care

For anyone interested in just the THC tests the link is:
Amazon.com: THC Marijuana Dip Test (10 tests): Health & Personal Care