"I have no idea of the final price and operating cost at this time, get in touch with them.
By the way, where are you located? I have some difficulties in following you.
Either my internet connection is poor, or you're now on the move?
Or over/near…"
"I must say that this discussion about "low budget" half a meter section flying cube for one thousand kilometers range@40kg payload is fun, at least technically, but as cost efficiency also (if that's not a rocket, but that's a very very different…"
"a nice calculator for weight to volume is here http://www.aqua-calc.com/calculate/weight-to-volume
where you can get some insights either on electricity cost; return of investment; mortgage and loan calculator; powers of two; daily calorie needs;…"
"hft, do you have a specific size of the 40kg payload (volume/dimensions...)
40kg of lead can be quite small, 40 kg featherless may fit on same size only ...compressed, lol"