Basically copy coupon, view price history or create e-mail price alert. Let’s see what best price is ATM.
Length: 780mm, Wingspan: 1180mm, Flying Weight: 600g, Requires Radio: 4 Channel
Aliexpress
There’re some similar (or not) items on Aliexpress
Click here to search by yourself. Here are coupons that you can use.
Latest coupon code price check (UTC time):
Banggood
Banggood warehouse is located in China.
Link: Banggood product page
1. ($53.99): BGHONEY2110
2. ($54.99): BGPlane-5
apply it in your cart after clicking “Proceed to checkout”. Click to copy code and open shop.
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): 11133d, 502C6B, 8b498c, TTxBG10, aff7off, bgssaff9, AFfbG10, BGAIRP12, BGOTC20, BGBFAFF2019, BGCITYADS2019, BGVDay10%off, BGMPB2020, BGAFF10OFF, bGhOnEy10, BGdragonBoat, bgshOOp10, BGRC902, BgoFErTaSchInA10, BgcLuBofErtA10, BGCuponation10, BANGGOODSD
(there’s a little possibility that old coupon will work)
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. Europe – Balsawood J-3 J3 RC Airplane KIT V2 [EU] ($-3)
Price history and price alert
Price history (for all/most countries) for Balsawood J-3 J3 RC Airplane KIT V2 is here.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood and Aliexpress (only if product name will be the same as on Banggood and I will post it on social media though, so it’s more like Banggood price alert)).