I'm a personal trainer so I have a very good understanding of human anatomy so I measured as accurately as possible my sitting height is 90-91cm with these measurements that would leave about 7cm for my foot height and a little bit at my patella which seems very accurate. I will not be doing two surgeries because I just want to get this over with and move on with my life. I realize 10cm is a lot in one surgery but if my body reacts well to the surgery well I will be doing at all at once or as much as I can and moving on.
https://imgur.com/a/3E97Z Hopefully this picture is better thanks again for your help and advice!