Here is what I was thinking. Instead of using my computer with all the proper security precautions what risk would I assume if I bought a used smart phone. Let's say off craigslist and installed tor and did all my purchases for both bit coins and product on there via public Wi-Fi. Like a mall on a super busy Sat. Take the battery out and only replace it when checking order status again only from public Wi-Fi with allot of traffic. Good idea? I want to minimize my risk as much as possible and create no link to my home or computer other than product shipped.
Why not just use TAILS? It doesn't store any data.