I am cheap too so always buy used. I have an Opio longneck soprano with a spruce top and acacia back and sides, Gotoh uptl tuners and a decent passive pickup installed. It is my go to instrument, especially useful in our church worship group, as the pickup makes it audible. However I see that you have the Koa Koaloha longneck soprano - why get an Opio? I love koa instruments but the price is forbidding unless I work out trades. PM me if you would like to continue the conversation.
Best - Ian