In generel my advice is do an internal method if you have a decent income the benefits outweights the exstra costs. However in this case where it isn't possible, and your're suicidal, because of your height I would also advice to go with LON, maybe femur (8 cm ish gain) for the most bang for your buck, but doing LON on tibias is a bit safer (5 cm ish gain) since it usually still gives a decent outcome with minimal serious complications, (if you go to the better clinics) even tho your're still running a higher risk than an internal method. I can vouch for AFA in turkey. From my research going to either Vietnam or India for LL is a bad choice with many bad outcomes. Parihar is a pretty good surgeon in India but I don't know if he still offers LON. Turkey is a place with many bad clinics as well but the one I have heard the best about is AFA with some positive stories and no negative ones. They also clean up the pinsites every second day to absolute minimize infections that LON patients usually get, not all clinics does this regularly. The entire cost with everything: accomadation, food, hotel, x-ray, psychiotherapy all in one center would be like 40000 dollars ish, which isn't bad value for money in my opinion.
Whatever you do avoid WannaBeTaller and LiveLifeTaller in Turkey as well. They're so many bad outcomes and stories on this forum!
Just click on "Limb Lengthening Patients Experiences" on the front page, and you can read some new bad stories about those places for yourself.