No worries. If you message me via the contact form or chat support on the website, I will try my best to provide you with one. The more feedback I can get, the better.
Thanks for liking my product enough to want to buy it right away :)
Sales friction is how you lose sales. Make your website one click purchase product page. One button - apply pay, customer pays with preset shipping and then you handle everything from there.
Your device seems to be an off-the-shelf Raspberry Pi running custom software. Have you considered making the platform available in a BYOD form, either for fulltime use or for evaluation?