You seem kinda insane to me, I am 177,5cm tall (179cm for a short period in the morning) Height neurosis is a real thing, I use to have it.
Always comparing your height to other people's height's and sitting height's. And thinking that the average height is much taller than it really is, At 5'10'' You ain't short/tall you're average IMO, adding 10cm's to you'r height will make you look like a disproportionate freak, NO matter of your current proportions!
I use to think like you, going for the highest amount of LL and cutting it piece by piece, If you had this highly invasive procedure for the past 7 years in mind then you REALLY should have done a better job researching it.
I can share some of my ideas with you, to give you a better perspective on the subject.
*I plan on doing 2x LL's (3.25cm) in order to look proportional (even nked) given the fact that i am about to turn 21 soon, I've got enough time to save up and rethink my proportions (something that you should have done as well for the past 7 years)
*Research proportions quite widely, If i had a wingspan of 179cm (We have a hight difference between 0,5cm and 1cm) I never would have considered LL in the first plase, You really surprise me with your carelessness for proportions, My wingspan is 194cm and i am still worried that i might go overkill on LL and be miserable and disproportionate for the rest of my life.
Given the fact that we have a very similar height, you might want to restrict you'r LL to no MORE than 3.5cm's in each segment if you're planning on doing a second LL, But thats based on my wingspan/shr/S.width and etc.
185CM's Would be a dream heigh for me... but not very realistic, 183-184cm is still a great height for sacrificing little of your proportions, Plus if you want to be at a "solid height" you could always get lifts on top of your LL, You would look really tall without being disproportionate and self conscious without your clothes on.
You could probably do the same.