I have the opportunity to buy a Nikon D70. I will be shooting theatre.

Mainly plays and musicals with dance thrown in every now and then. Hence why I need really good low light capabilities. At times I will also need to shoot in bright conditions. Movement will also range from stills to well...dance. I know lenses will play a factor in this hence why I read I need the 50mm with 1.8f under these conditions. I will be shooting from 5'-30' away. Mainly in the middle of that range.

What should I expect to pay for this with basic kit it came with from store. It is 6 years old. (If there is a better sub $800 camera out there let me know) Thanks for help. If I get this look for me more often.