1x PDB Board, 1x OMNIBUS F4 V6 Flight Controller, 1x Cable Wire, 4x Furling32 mini 45A Blheli_32 Brushless ESC.
Basically copy coupon, view price history or create e-mail price alert. Best price?
Aliexpress
There’re some similar (or not) items on Aliexpress
You can use link bot to get even lower price:
Click here to search by yourself. Here are coupons that you can use.
Latest price update (UTC time):
Banggood
Banggood warehouse is located in China.
Link: Banggood product page
1. ($71.99): 28RC
2. ($89.99): bGhOnEy10
3. ($89.99): BGdragonBoat
apply code in your basket (cart) after clicking “Proceed to checkout”. Click to copy code and open shop.
Additional Banggood coupons: first page and second page
Old coupons (from the oldest to the newest): F4V6, 502C6B, 15AB, TTxBG10, BGAIRB, 2019SPEDM, BGss9%rc, BGPAYPALSS, BGF4V6, AFfbG10, BGSS10%SW
(sometimes old coupons work, so you can check them out (this site checks them on every price update))
Price history and price alert
Price history (for all/most countries) for Airbot OMNIBUS F4 V6 RC Flight Controller is here. The lowest price was: $59.
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)).