Shopping Cyberpunk style outfits for 70cm?

Not sure about measurements of DOD, but I recommend to check Phoenix Mystery, I have one of their outfits for SD17, it even fit to my dollstown 17 body, which is a bit bigger than the telethesia I bought it for.
I have this one BJD Clothes Qin Sheng Outfit 70MC0006 for 71cm Size Ball-jointed Doll_CLOTHING_BJD,Legenddoll,bjd,BJD DOLL,bjd doll,Ball jointed doll,BJD accessories and here is the post where you can see details of the outfit

 

I'd keep an eye on Moonlight BJD, they have that sort of stuff pop up from time to time. (e.g. this set, which sadly is already sold out in 70 cm)

 

Space studio gets cyberpunky tech wear type stuff from niche clothing artists regularly! Very high quality stuff and space studio has great service. And you can use a proxy like superbuy to shop on taobao (please don't use moonlight, they're mainly a taobao reseller, and their service is really not good and they upcharge a frankly criminal amount), taobao gets a lot of stuff that'll fit cyberpunk vibes, you'll just have to do some digging and a bit of struggling with search terms and the learning curve.

 

I recommend Saphar BJD Tailoring (based in France), she does high-quality cyberpunk outfits and separates and she tailors for 70cm. She tends to release in small stocks on Etsy, so follow her Instagram for updates (I think she also has an email list).

 

Can second Saphar tailoring! The stuff is always really well made and really cool, but do keep a close eye on shop updates because things do sell super fast