The 30 is not enough engine for that plane. Buy it and you'll end up buying another making it twice as expensive. get the CRRC and you have a 50-50 chance of getting an engine reliable enough to do the job. So you may buy that one twice as well. You don't save a dime either way, and in fact spend more than you would had you got the right sized engine of good quality the first time. A high quality engine will last you 20 years if you take care of it. A low quality engine may not get off the runway a first time.

You'll need at least a 2.4, or 40-42cc ngine to fly the plane. There are some good companies out there that sell great engines. Not cheap because they aren't made cheap. Do yourself a favor and get a good engine the first time, and do us a favor in the process by saving us all the time and effort responding to your later posts about the other engines that didn't run well or didn't have enough power.