Mixing n mastering

Mixing n mastering

We have a track that's an odd one that requires a dirty synth at the back, all written and everything, we have one already but was curious for insight. We've attached a rough demo of the track. Whats your turnaround like? we have unfortunately been let down so are looking to get something finished ASAP if possible?

https://drive.google.com/file/d/1-gGFpwfmRUghNRXW3QPh6G6odrdIwihw/view?usp=drive_link