How much time until consolidation and being able to walk without any help?

Im looking to do a conservative amount of lengthening, about 5 cm in femur and 4 cm in tibias (about 1 year apart). It's possible all the procedure can take about 4 months for each one as an upper limit? i mean, time since the first operation until im able to walk again not using any kind of crutches or a walker.
It seems somewhat not possible, but im willing even to lower the amount to 4.5 and 3.5 respectively if i can reach that time limit. I dont want to loose a year in this and just do it as a summer procedure. 7 cm in total its more than enough for me, i'm 158 cm tall and reaching 165 cm tall considering i have money (or at least my dad have money and i'm going to inherit a good business) and i have a very good looking face, sounds like enough, i can mimic anyone being 167 or 168 cm tall with a pair of shoes that allow me that.

maybe with precice max and if everything goes well, even then you may walk un aided but you gait is not going to be 100% ok imo

I hope. What do you think about externals?

Based on bunch of medical papers 1 to 1.5 month/cm for full recovery with externals. So 5 cm should be 5-8 months. Femurs heal faster though, with precise 2, I believe it's possible to walk with crutches during the consolidation so 3-4 months in the process.

i hope it to be faster with the ingestion of vitamins and a good physiotherapy

I have the same Time problem with this procedure can’t do this and be out for a year
+ I want to get tall as possible
So I thought about dividing the lengthening doing 4 cm in femur or tibia come back next year rebreak
And do the other 4 cm
But I don’t know if ever I’ll find a creditable doctor who could accept and do this
+ can precise nail work and lengthen again after a year
Is something I consider