Find a manufacturer to do it. The proportion of light boxes is customized according to your own needs. Generally, it is the cost, plus the processing fee. Didn't say it's not worthwhile to do it alone. Of course, there must be a discount on measurement.

Shanghai Pincheng Plastic Co., Ltd. is recommended, specializing in the production of acrylic and PC boards, near Zhejiang.

Also, if you really don't know the situation, you can go to the building materials market first to explore the market and see if it can be done and the price. Anyway, in this case, you can ask more people to be confident.