Video editing of a 3 minute video with voice over.

Hello - Project being reposted after being let down.

I have a video of explaining how to use a particular service we provide, the video is actually longer than 3 minutes but I only 3 minutes of it.
The video also comes with instructions. I would like a voice over to repeat the instructions with some minor changes as it mentions some names (it was a presentation to us), one section does need to edited/changed. It shows a report which needs to have our company name on the report. I would also like our standard video logo ending.
Ins short around 5 changes, voice over, change report logo and company logo ending.
I need this very quickly, if you can show me your work and start quickly and return quickly.
Payment will be half on start balance on completion