thinking of making a jump from rift cv1 to index. Is it really worth shelling out extra $1000 for?

I also thought of upgrading from cv1 to rift S, but I'm assuming the inside out tracking can't really track my hand if my hands are behind the headset/my body. I'm also scared of the IPD because I play at 68mm. Also it really bothers be how I will not have access to full tracking yet again. Thoughts?