Wireless rear speakers. 5.1 and 10k. These things dont add up and never will.
Firstly, there is no such hybrid system with front 3 wired and rear 2 wireless unless you do some mods yourself (totally unsure of the mod thing)
Secondly, when you say HT, do you want the bluray/DVD player included? If yes, your friend will have settle for a low end system most likely. 10k budget is quite less no matter how you look at it.