How can I make a simple soap noodle melting, mixing and grinding machine

Hi from Honduras! Our currency is way down and it's very hard for us to import even simple small machines. I am a women with physical disability and have started my own homemade soapmaking shop. It is very hard for me to be hand mixing, grinding and melting ingredients such as herbs and soap noodles and/soap bases. These simple acts does put a toll on my hands and arms. Can anyone aid me? I appreciate your comments. Gilda