Fill out your order request form If you are interested in one of my instruments, please provide your information below and I will be in touch as soon as possible. First Name Last Name Email Telephone mobil Country City Instruments Choose...Ronroco SelectoCharango SelectoPremium RonrocoPremium CharangoElectric RonrocoElectric CharangoVenezuelan CuatroBig Ronroco Message Request information Request information. With this form, you will notify me of the instrument you are interested in purchasing. Email Response. I'll send you an answer via email with the information regarding construction times, price and any other details that you may need. Instrument Construction. Once we make an agreement, I will begin the manufacturing process.