Contribution to retirement plan for american expats

[marawatk]

I am u.s citizen employed abroad by a non american company. I had taxable income of $300k last year after utilising the Foreign earned income exclusion and housing exclusion. 

I also am a self employed free lancer doing a different activity having my own company.  My company only makes $20k per year in income. 

Can i set up a sep IRA and contribute the max of $66k?  

Can i use my combined income as an employee and self employment?