101,when I built my lt-40 several years ago,I put a Enya 45cx on it and plenty of power.The webra should fly it just fine,especially if this is your first plane.You can find used engines each and every day on E-Bay.I have in the last year bought over 30 engines this way,altough about 28 of these were new.I would rather know my engines history.They also are selling new engines at for the most part,reasonable prices.You might want to check it out.

Bill