Last night I went to change my dads oil (98 SE V6) I get to my gfs place which is about 60Km from home, throw some engine flush in there and let her go. I went into the trunk only to notice hey no oil. So I had to call my dad to bring my car up with the oil. 50 min later, he arrives. In the mean time ive drained the oil and am waiting for the new stuff so I could just add it in. I finish the oil change and this is when things got bad...
I went to start the engine and the bloody key broke in the ignition. the car still started, but now i have a hunk of metal in there that shouldn't be.
My questions are:
1) Can I fix this problem myself?
if yes) can it be fixed without have to buy new stuff?
if yes)how do i go about fixing it?
if no) how much will it set me back?
if no) how much will it set me back?

Thanks in advance!!