If you want 10 cm, you should do both Femur and Tibia, and that isn't cheap. I would try to do 8 cm femurs and then you can always if you want 2+cm more do tibia. But never do LON! It's unsafe if you ask any experienced Western surgeon, because of the very high risk of developing deep infection. You can't find any US surgeon who recommends it for a reason.
The reality is not everyone is going to have the budget for internals and so LON is the only option. It's easy to say 'well just save more bro' but that's not a viable option for many. Plus inflation on LL prices is quite insane, you'd often just be saving more just to stand still as costs rise each year.
Infections are cured most of the time with antibiotics. Actually, I'd pre-emptively be taking antibiotics before even starting the surgery for this reason - it's a lot easier to prevent an infection than to get rid of an existing one.
Let's be quite clear as well: a big reason 'experienced western surgeons' recommend Precise over LON is because they make a lot more money from it. They're hardly going to tell prospective patients to go to their cheaper competitors abroad, are they?
Finally, being 'western' isn't always some mark of quality and the US certainly isn't. America has a lower life expectancy than just about every other western nation, and a lower life expectancy than some 'developing' nations too! There's been plenty of butchers in the west (Guichet, Phili) and those with debatable lengthening practices (i.e. Betz allowing patients to lengthen 10cm+ on one segment).
Don't go to Turkey or India would be solid advice, but I'd certainly consider Russia or China for LON if that's all the budget stretched too.