An addition and errata corrige for the 747-400s:
The SB 747-400 I had previously drawn had only Pratt&Whitney engines, no big deal but I had wrongly added the short-range -400D variant that was actually available only with General Electric CF6-80 powerplants.
So here is the correct -400D, with an extra regular 747-400 fitted with GEs.
Currently lacking only the most recent RR engines to have all 747s represented in SB scale as well.
@TJ, sorry for the extra work given to your extra widebody chart. And sorry for still having not produced the unbuilt -500 and -600 still planning to complete them anyway.