Rear Sprocket Mounting Problem

Hi,Im new to site.I purchased a Micargi cougar cruiser and a RAW motor kit.Piece of cake rite?Well...Among other problems,how the heck do you mount the 9 hole rear sprocket to the bike wheel?With the straight spoke pattern,the spokes are so close together at the hub that there is no way to get the 9 bolts thru the spokes.Even then,you have to bend spokes at the hub,etc.Any way someone told me of a 5 hole 44 tooth sprocket kit that would solve my problems(short of buying a different rear rim)Does anyone out there know where to get this particular sprocket kit?? Thanks