Hi George,
Yes, that fellow looks quite a bit like Lincoln!
The disease I believe you're referring to is Marfan's Syndrome, but I don't think Lincoln suffered from it. It's merely one theory that someone threw out there, but his DNA (to my knowledge) has never been tested for it.
There is quite a long list of maladies Lincoln supposedly suffered from. But, for the most part, they are merely theories. There are as many Lincoln theories as there are Kennedy Assassination theories.
Best,
Sam.