i've been chuckling for a day or so at your question "honestly is it worth it for a few inches...."
that's completely up to you. if by worth it you mean will you be monetarily compensated for your time and skill when you sell the bike? most likely, no.
really, only you can answer that question. it depends much upon your patience, your value for building vs. your value for riding, how much you enjoy doing something new, all kinds of things.
i have spent so much damned time on a little thirty five year old honda for a three year project now, it makes my head spin. some shit i've taken the time to figure out, other things i breezed by because they weren't important to me. but that's the big thing: is something important or not to me? i've sacrificed a lot of riding time. money. attention that might have gone to other projects, or to time in the gym. for me, it's the process. do i get satisfaction out of it? is it calming? does it express something inside of me i like? then i'll do it.
anyway, perhaps a little off point, but it was "worth it" to me to get it off my chest. i guess doing it will be worth it to you if you come up with something interesting enough to make it worth it, however you measure interesting.
pain or damage don't end the world. or despair, or fucking beatings. the world ends when you're dead. until then, you got more punishment in store. stand it like a man... and give some back.