Since we don't know what you want to build, we couldn't really say.I just discovered electrathon today while looking at velomobile & fairing ideas for a custom build. I'm curious if THIS could be altered slightly to use in what I want to build.
I would recommend starting a thread in the "builds" section and providing as much info as you possibly can about it.
Front axle & steering are the only parts of this build I'm not experienced with. I've built bikes, e-bikes from conversion kits, and can weld. $250 (plus $30 for shipping) is enticing to have that problem solved. But it says it's set up to run 14" wheels and geometry is based on 55" wheelbase. Also I can't tell from the pics if I'd be able to pedal without banging my knees on the steering assembly. I wish there were more pics and info such as weight.
I'm also wondering why the velomobile and electrathon builds are so different in the areas of wheel size and chain gauge? Seems all the electrathon builds are running smaller and thicker wheels with heavier duty chains vs the standard bicycle wheels and bicycle chains of velomobiles. I assumed they'd both want to reduce weight in those areas.