Marketing, am I off base here?

[Wane Tango]

Ok so I am a new wholeseller and I have been studying and talking to other real estate professionals for the last 6 months and I am ready to purchase my first list. I do not know any local wholesellers yet. I am still trying to find one or two in middle TN that I can occasionally get some advice from (so I know the things I am being told will work in my state). Until then here is my question for anyone who can answer. 

My prospect list from listsource is around 1800 for a small area around where I live. Now I don't want to start counting chickens before they hatch but would it be reasonable to expect (considering that I am new) that I could predict a .75-1% success rate? 

Does this seam like a reasonable number or should I be more conservative in my guess work?

I am trying to prepare a 6 month projection and budget. I have an extremely tight budget and sold some items to get a starting point for marketing. I am just trying to figure out what my performance benchmarks will be. 

Thanks everyone!