I would reiterate the advice given above by pigsmickey. You don't want to be old and feeble and wondering "what if...". There are at least some TS ladies out there who do look like their photos. I can vouch for Shemale Rammer and Renatha Lopez's reputation suggests you can't go far wrong with her. Maybe you could narrow it down to those you find particularly attractive and who have enough reviews that seem genuine vouching for their appearance. After that, you could select one who's service most appeals to you.
Whatever you decide, best of luck with it!