I am not uneasy, just unsure. My biggest worry right now is if the company does take off, would i regret not asking for equity?
After that, you may be without a job. This is your downside, and it's what you should plan for.
In a best case situation, after 6 months you will start gradually earning back the money you missed out on, + a raise.
This means the only upside for you is the raise you _may_ get after 6 months. You should decide for yourself if you're comfortable with the amount of risk you will be taking for this upside.
As an extra caveat: it seems to me like it would be very easy for the founders to claim "there is no capital". Especially considering you are in a foreign country and are likely to not have any insight into the company's financials, it will be extremely hard and costly for you to prove otherwise if things go sour.