motor /engine size i am guessing but a ruler will do lol no? - just kidding.
as for KV i think they are around 600-ish if i recall correctly as the difference between pro and standard is 30KV...
the battery is LiPo yes lithium polymere
hooe i could help. please don't take any offense as non was intended.
az for the size i do really guess that they are looking for the actual physical size.
cheers