Bottom to top distance: 35mm, Bottom plate thickness: 3mm, Weight ：150.4g (with TPU parts / and battery anti-slip pads), Main body dimension: 185*133mm, Camera plate thickness: 1.5mm(2.5mm included TPU inserts), Arm thickness: 6mm, Wheelbase: 222mm, Top plate thickness: 2.5mm.
Just check coupons out (with price alert and history). Do you want to know what the best price is?
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 coupon code price check (UTC time):
Banggood
Banggood warehouse is located in China.
Link: Banggood product page
1. ($259.99): BGf6142c
2. ($418.59): Cuponation9
3. ($418.59): BgGoodie9
4. ($423.19): BGJON8
coupon code has to be applied in shop’s 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): BG993c26, CouponsdeFPV, MVC8SPRING, 8BGwbg2204, tRaDetRaCKeR, BG8RCToy, hoNEYbGdeAlS, BGToys1, BGRCT10, BGJUNEGSG9, DealBGimpact, 9OFFSUMMER
(sometimes old coupons work, so you can check them out (this site checks them on every price update))
Price history and price alert
Here is price history (for all/most countries) for iFlight TITAN DC5 V1.4 4S Caddx Air Unit Polar Drone. The lowest price was: $259.99.
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)).