How much can I lengthen from LL?(Pics included NSFW)

Edit Post

I am around 5'4.5(163 cm) and I want to lengthen to around 5'8.5- 5'9. Should I lengthen tibias or femur?(P.S my tibias are really short, my foot doesn't touch the ground sometimes when I'm sitting in certain chairs)

My inseam is around 27 inches
My wingspan is around 5'7-5'7.5(170 cm)
I'm not to worried my wingspan not matching with my height
I am looking to aim for an aesthetic lanky leg type of look or something close to it

https://imgur.com/a/LPcA7We

Edit Post

You should probably lengthen both tibia and Femur as the max that you can get on femur safely is 8 cm and tibia is 5cm. Some doctors would lengthen more that the safe limit though. 

Edit Post

How much would double LL cost? And can you do double at the same time opposed to doing it a year later?

Edit Post

@Medium Drink Of Water

Edit Post

Your femurs look a little on the short side to me.  If I were in your position I'd lengthen them if you have the budget for an internal device.  Don't do external on femurs.  There's a chance you can get more than 8 cm on femurs.  It's been done.

That lanky look you want can probably only be achieved by lengthening tibias though.

Double LL costs double.  You can do small amounts of both at the same time but for big gains you'll need to wait a while and then go back for more.

Edit Post

How much is a safe amount for the tibia? I heard around 5 cm but I heard it isn’t very optimal for mobility function.

Edit Post

It depends on how flexible you are.

Edit Post

I’m guess I can say I’m pretty flexible and healthy, is 4 inches for femur safe?

Edit Post

I don't know.

Edit Post

Personally I'd go with 7cm max and call it a day. You're wingspan is 170cm. If you do 7cm on femur you'll be 170cm. What's wrong with being 5'7?