I got a complete flight box tower set up with everything I need from tower for $70.
I just used a coupon they send to with every purchase.
I had it shipped the sametime I purchased a model. That in itself saved me money.
Pluse when I purchase more at tower on an order I also get a discount.
So bascailly a flight box is relatively cheap, if you shop around and do your math right.

Why the heck would you want to buy a cone and an insert and whatever else you have to mess with ?
when you can get the starter for $20 without all the hazzle.

Ialso had one of those potable or cordless starter too, $50 as i mention.

Yes you can get a motorcyle battery or put a bunch of AA or C cells togther .
You can even use batteries that gose into the flight box.
But then you still need a charger.

The portable set up comes with a charger already
Why mess around.
Your not going to save any money.lol

Then the next thing your going to tried to do is sand or clip damage props to save a couple of bucks.
Don't mess aroound.