Bass recording

I´m looking for a bass to record a song, I have the music and the chart, but the chart it´s only an idea, I´m open to developed more ideas coming from that chart, I mean what I need is a bass track doing better than I did in the demo. The drums are a loop and the singer have to record again ... but maybe you could make an idea .. thanks a lot !!! in advance ...

Additional info:
I don't have a hard deadline for this. I need parts recorded for three to five songs. Check out what I attached. I'm looking to hire a top pro who's worked on hit songs, and have the budget for that. I'm an indie artist. The part I'd like you to record is already written.