Two options. 1) Make your own texture for the model(s) you do have. Heck, somebody did it, so can you. 2) Go to Daz3D.com and purchase the model you need. Option 1) may be tough to do, but very satisfying. Option 2) may be quicker, and will hit your wallet. However, you'll have new toys to play with.

"Few are agreeable in conversation, because each thinks more of what he intends to say than that of what others are saying, and listens no more when he himself has a chance to speak." - Francois de la Rochefoucauld

Intel Core i7 920, 24GB RAM, GeForce GTX 1050 4GB video, 6TB HDD space
Poser 12: Inches (Poser(PC) user since 1 and the floppies/manual to prove it!)