I am "without gainful employ" at the moment. If people are interested, and are willing to pay postage and a small sum for construction and test, I would be prepared to build tuners
en masse. This will depend on interest. The build quality will be high (I'm an Electronics Engineer) and I would be prepared to research postage costs, sending insured if necessary, in properly padded impact and puncture resistant boxes.
Anyone interested in this service, mail me to let me know your interest, and what your budget is. And NO, peanuts are not valid currency