ahansen1,
Sure its realistic on most VPS accounts but of course most account characteristics differ in many ways.
Incremental lesses the load on your account by taking a backup of only the files that have changed since the previous full or incremental backup.
As far as the backup destination if you are weary about disk space, we have an remote backup service if you would be interested. We'll even configure it for you.
Space: Monthly Price:
5 GB $10.00
10 GB $15.00
30 GB $25.00
50 GB $35.00
100 GB $50.00
Over 100GB $0.40 per extra GB
If you are interested contact our Sales Staff
https://desk.surpasshosting.com/ and reference this forum thread.