South Carolina is a Shall Issue State and issues concealed weapons permits to residents of South Carolina as well as out-of-state/non-residents with exceptions. Non-residents must own property in South Carolina or if you are Military stations in South Carolina.
The two main types of stress testing are a standard exercise stress test and an imaging stress test.
The best person to answer your question would be your primary care physician or cardiologist. How long a stress test lasts depends entirely on what type of stress test you are planning on having. The shortest of all the stress tests are the simple exercise treadmill test without imaging. This type of test is usually pretty quick. You'll only be on the treadmill for ~15 minutes.