You can create price alert here, copy coupons and view price history. What is best price?
Weight: about 235G (including prints), Paddle: 7 inch paddle, Motor mounting holes: support 16mm (m3) and 19mm (m3) hole pitch motors, The distance between the holes of the tail image transmission: 20*20mm / 30.5*30.5mm, Thickness: bottom plate: 2.5mm, Adapter for DJI Air Unit /VISTA Air Unit, Wheelbase: 328mm, Item Name: Frank II Frame Kit, Printed material: 3D printing tpu material, Arm: 6.0mm, Print color: blue TPU, Brand: FonsterFpv, Camera installation width: 19mm/20mm/21mm, Upper plate: 2mm, Adapter for Gopro7, Splint: 2.0mm, Flight control hole distance: 20*20mm / 30.5*30.5mm, Adapter to GPS seat: BN-180 GPS
Aliexpress
I could not find it 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. ($57.95): BGJON8
2. ($57.95): BGRCParts8
3. ($57.95): BG1efeb0
put item in your cart and apply coupon code there 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): Parts8
(these codes were not working in latest coupon update, but you can check them out anyway)
Price history and price alert
Check out price history chart (for all/most countries) for FonsterFpv Frank II 328mm RC Frame Kit.
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)).