I've been in IT for about 15 years, most of it working as a contractor handling small business networks, consulting and ground-up setups in Florida's Tampa Bay area.
Why is my bid so low, compared to the others? Simple: This isn't a $100 job.
I have quite a bit of experience with VPNs and routers. I also run a small web hosting business, so I possess extensive experience with mail deliverability issues from both client and server standpoints.
I use remote access software that does not remain on your system and can call any US number, should it prove necessary.