When I was updating this page, then coupon price was 54.99 USD for Dancing Wings Hobby E30 PITTS 450mm PP Foam RC Airplane KIT Power Combo (in Banggood). Just check coupons out (with price alert and history). Best price?
Latest coupon code price check (UTC time):
Banggood (54.99 USD)
Banggood warehouse is located in China. So I have checked for active coupons (all category coupons and old ones), but there was no working coupon in Banggood. I think you want to know if the price is good. IMHO this is a good price, coz it’s lower than average (57.66 USD)
Link: Banggood product page
Price: 54.99 USD
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k
Old coupons (from the oldest to the newest): BGb27ae1, BGf82206
(sometimes old coupons work, so you can check them out (this site checks them on every price update))
Aliexpress
Here are coupons that you can use.
Price history and price alert
Check out price history chart (for all/most countries) for Dancing Wings Hobby E30 PITTS 450mm PP Foam RC Airplane KIT Power Combo.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).