A question for atheists only!?

Would it be acceptable to take a Healthy living person who is single with no living relatives and harvest their body to use on six people who need transplants?

I think if there is no god then nobody has a right to life, so if one persons death could save six people and if he/she will not be missed it'd be okay to harvest them for transplant organs.

However, if there is a god then we all have our lives to lead for whatever spiritual path we are on, and being single and totally alone is the path we are meant to experience.

I imagine most people would say it isn't okay, but what if there were seven hostages and the hostage taker said 'choose one amongst you to die and the I'll let the others go, if you choose nobody then you all die'? Would it be okay to draw straws in this scenario?

Please no christian/muslim comments - I wonder what atheists think about this!
Babez - I am a christan and I think it's wrong, but I think if there is no god then we all have to do what's best for the majority. I wouldn't get cut up because, seriously babez I'm hot! I would be missed I have family bfs etc.