Not an expert in website evaluation. Almost got scammed trying to purchase one last time on this forum. Didn't go through the deal. Would you be willing to link to your site publicly so everyone can pitch in with their evaluation of the site, including experts.
I didnt get scammed particularly because the people here on the forum raised questions that I didnt think of.
It doesnt look like you have anything to hide, so why the secrecy with the link?
Also, golden rule of lending is, whatever the collateral is, it has to cover the loan and the interest and then some. Is your site valued at upwards of $6000 ??