We need to separate them into two distinct debates because I know that if we combine them we will spend an inordinate amount of time focusing on evolution and little time on creationism. Therefore, the question of "can creationism account for ERVs?" will get swept under the rug and will not properly be addressed. I think you and I both know that.
Looks like 8:30 am my time. Since I have to work on Saturdays, we'd need to put a time limit on how long we will debate if we choose to do it on this day. How long should we put it at? 30 minutes? An hour? If we don't get to a satisfactory conclusion, we can always set up a second one at another date.