typically you can download the libraries at no cost (we have them) however what you can design with them has their limitations.
for example with DESS you can use them to design a screw retained crown that fits onto our ti base.
Others from implant companies probably offers you both custom titanium abutments and screw retained zirconia with ti base solutions however you have to send to the manufacturer to obtain the finished part
what country are you in?
what type of restorations are you planning on making?