One Hour daily is enought to start up with,this you can spend on reviewing the daily actions and reading information on hw to grow your business. As time goes on you will need more than one hour.
Your budget of 50$ a month is enought to start with.You can spent it on-
1. Sbuilder which will give 280VPS
2. Tcredits of 100pack for 1200VPs or
3. Tcredits of 125pack for 15000VPs.