Actually, theguitar you may want to contact one of the officers of the nearest RC club to you. Explain what you want to do. There may be someone that has an engine in good condition for a song, or even possibly give you one free. Also, they could get someone in touch with you to look at what you have, and help you with engine selection and adjustments, check your build progress, may be even give you flight lessons, so your ARF will last longer with more satisfying flights. There's a network of modelers out there willing to help if you contact them.