Need suggestions to narrow it down.

I have read lots about international adoption and am flabbergasted. I can't seem to wrap my mind around everything. I look at one site and it says I am eligible for that country and another says I am not. Could you help me narrow it down based on my criteria? Dh and I have been married for 19 years. Dh is 38 and I am 35. We have 5 bio children ages 14(g), 10(b),8(g), 3(g), and 1(b). We want to have one more child but would rather adopt than have a bio child. We would consider a two sibling group only if both are younger than 7. Still it would take much consideration to take a siblings with our preference being a single infant. We are not rich by any means but live comfortable and are sure we can take on the additional responsibities. However, the expense of adoption is a conscern. For this reason, we will need to choose one of the lesser expensive places to adopt. When choosing countries, South America would be our first choice. (Before we married, dh and I went on summer mission trips, seperately, to Nicaragua, Costa Rica, and Honduras.) We are open to any country/areas other than Eastern Europe. Even thogh we are caucasian, we prefer another race. Haiti, India, and Ethiopia are high on our list. Another issue is traveling. We are very open to traveling to the country but it cannot be extended stays keeping it closer to or under a week. Dh's job wouldn't allow it and we would travel as a family. ( I homeschool so missing school isn't an issue.) I realize this would increase the cost but it would be worth it. Lastly, we were foster parents for a year to two boys. We were fostering through our state and decided we couldn't continue after the boys were given back to their dad. He never once passed a drug test and even signed a paper stating he would never give up his kids or his drugs. The mom tried to "straighten out" but always went back to drugs. At the end, she ended up doing something that landed her with a couple of years in jail. No other family members came foward since this was the third time these boys were placed in the system and sadly there was another sibling, different father, in the system too. After a hard year of loving and caring for those boys, we just couldn't do it again with as flawed as our system is. Now that you have read all that, do you have any recommendations?