Mixing

I recorded a Hiphop song in my bedroom studio using mostly sample audio. I have level my vocals and added a few effects to it. Should I submit it with the effects? I would like you to mix the song to give it the spark it needs. Feel free to make any changes to help the song shine. Hiphop/trap kind of feel. How much would it cost and how long is the turnaround? Any revisions included in the price?

Additional info:
I'm hoping to find a good mixer that can work with my limited budget. I'm an indie artist. The tracks are cleaned, tuned, and and the song is ready to be mixed. The song has somewhere between 10 and 30 tracks recorded that need mixing. I don't need the song mastered. I don't have a hard deadline for this. .