I've been wanting to play with 7" for quite a while, but wasn't sure if I wanted something fast and freestyle, or a long range. So this is a bit of a hybrid of both.
I couldn't decide on a frame, so decided to give the Apex a try, unfortunately there wasn't enough space in the back to fit a TBS Unify Pro 32 HV, so I had to drop back to a Tramp, I may put something different in there in the future (Maybe a Rush Mini).
Motors were easy, the Emax 2807 were the only ones available at a decent price near me. Stack is the Diatone Mamba F7 App Mk4, and I can say that so far I'm a very big fan, large pads for soldering, and a very good layout with the camera input at the front, and vtx output at the back. Being able to turn the VTX on and off via a controller switch is a big plus too (for while the GPS gets signals).
Originally I was looking for a battery in the 2000mAh - 3000mAh range, but couldn't find anything appropriate, so went with this Dogcom 1850mAh which turns out to be perfect. Any larger wouldn't fit, and this has plenty of flight time. One day I'll try a LiIon pack too.
Dry Weight: 530g
plus Battery: 825g
plus GoPro: 995g
What is the flight time? I wanna do something like this but I want to make sure it has enough range to do some mountain surfing
With the bi-blades, about 12-15 mins of just cruising time, with tri-blades (7x4x3) around 5-6. If you used a lighter action cam, you'd get a lot more though.
I think u could get more flight time by using a 2806.5 motor instead of a 2807 motor, altough i do see your predicament due to budget and location restrictions. It does work though, due to the reduced weight of the 1850mah pack