platinum1

There are plenty of other good electric motors on the market other than Hacker or Pletty such as Hyperion and Axi. You will be able to buy a motor / ESC /charger for less than the price of a YS1.70 and a mount.
If you want to fly 10S then two sets of batteries (which is probably the minimum you would want) will cost you around $200 if you buy Rhinos or similiar. These should last a minimum of 100 charges per pack which is $1 per flight. Your YS 1.70 will only get around 6/7 flights from a gallon of fuel which will be around $30. or $4 /$5 per flight. Your electric airframe / servos will last longer as there is no vibration and no fuel contamination. You can get around 8 minutes flight time from your electric setup which is long enough for most people.

John