Need help on a 2 unit!

[Ryan Mellon]

Hey guys, I have a lead on a two unit that I am having a hard time finding comps on in the area because the majority of this area is single family residences.  This property was bought for 115k in 2006 it has a current tax assessment of 130k.  It has both units currently renting for a total of $1030/ per month, $1500 annual taxes and $700 in insurance.  The owner is willing to sell to me for 75k and I would like to wholesale it to someone for 80k.  Do you think I might have a hard time selling it without having solid comps?  Any help is appreciated.