Nice. I do like the look of it in the 2nd photo. Even with the mis-matched bits, modern rear mech, original (ace!) front mech, superfluous rear disc..... For some reason, it works for me.
Maybe cos it reminds me of what I started out with when I dug my old '94 lava dome frame out in 2008 and hung some random stuff off it to see wha it was like.... Then I discovered retrobike, had it re-sprayed and got hooked on period correct(ish) bling.
I do have a real itch to modernise it though.... Get a disc tab brazed-on and run a modern 100mm fork on it, but then I suppose it'd be very similar to my modern hardtail.
Anyway, I digress. Have you had a disc tab brazed-on? Argos racing cycles in Bristol do a fine job I hear.