Share 'tempering machine for lemon curd????'

I have a good friend who has a lovely cookie business called "Two Tarts" here in Portland. Amazing.wonderful cookies. We are in a small business-owner's group together and she was asking about using a tempering machine to make lemon curd. She thought it might pencil out because she has to pay to get someone to sit and stir it for the whole process, which is long. She wondered if a tempering machi…