It's not that it's impossible, it's just to what degree it is worth the effort. I've already transferred a 16mm print, and while the Derann might be better, it also might be worse (judging from the resolution of the super8 Ken films I transferred). Projects this length take quite a bit of time (PG took an entire year, because I'm squeezing this stuff into the nooks and crannies of my schedule), and I have a queue of other interesting SW films on the way (not the least of which is ESB Grande). Doing a Derann print just didn't seem as pressing, especially since I'd have to figure out some way of actually making it work, without damaging something.

Also, keep in mind that the WorkPrinter isn't going to make the best possible transfer of a film. Yes it will be better than a typical transfer house (especially since I care about it). But the very best transfers, such as a rank HD transfer, will beat it. But I'm still not even sure if the very best possible transfer of a Derann could compete with the GOUT.