Looking good: the sparkly gold frame seems oddly fitting for one of these, since they were notoriously "blingy" which suited some people's taste but not others.
I've built one large-scale bike before (a Kawasaki Zephr) and I didn't find it all that difficult, although that might have something to do with having spent so much time around 1:1 scale bikes that the components and how they fitted together seemed pretty familiar to me. The flip side was that the kind of "scale compromises" that might have satisfied a non-biker looked intolerably wrong to me, so I spent a lot of time fixing stuff that probably nobody would have noticed.