cristina5448, people are unlikely to be interested based on the number of domains, hosting accounts etc. Similarly, they won't be impressed by claims - genuine or otherwise - of "huge potential".
They'll be interested if you have some solid figures that demonstrate it's a viable business. If it's ready for launch my suggestion would be that this is the worst possible time to put it up for sale. It suggests that you are bailing, that you can't make any profit from the site.
My suggestion would be to launch it, make it profitable and then put it up for sale.