Sooo, it's 13 years later, and I finally have my own Kitbashed model of this, although it mixes TOS with TMP. And it's for Daz Studio/Art renders though, not for SFC...
BTW the central hanger bay tail section is from the USS Ares, with the hanger section added using Daz primitives. Someone recently made Tobias Richter's D6 and USS Ares available for Poser/Daz.
Also, I'm mixing SFB and FASA lore here. She's an Alliance of Free Worlds ship. The AOFW is located in neutral space between the Federation, Klingon, and Romulan empires, a region known as the Triangle - this would replace Tholian space in SFB, and the Tholians would be locaded in some other location.
Unfortunately, the best I'd ever be able to do is export as .obj, but converting to whatever format SFC: OP would use, yeah I don't have those programs. Blender isn't my thing even if it could do such a conversion, and I'm not looking to shell out money on new software, as Daz Studio does most of what I need to do. I'm more of an artist these days anyways...
I do have Poser, but I'm guessing that won't export the proper format for a SFC model in any case. Plus it's probably WAAAAAY over the poly counts typically used in SFC.
While tracking down an .obj of a TMP era Federation Dreadnought might be nice, I've grown to like having the TOS nacelle at the top... and it would fit with the 'history' of this ship, i.e. a TOS era DN sitting in the scrap heap awaiting salvage, only to be rescued by enterprising AOFW fleet personnel through an auction/negotiation with Starfleet. Of course, Franz Joseph DNs aren't part of FASA lore, but cross dimensional stuff ties in with the story, so it'd be an alternate timeline thing.
Note that the models I used for this kitbash are 'personal use only' which means I can't use them commercially or redistribute them. I suppose I could ask the various modelers for permission, but I suspect that not many people would be interested in this ship in the first place. It's mainly for a story anyways.
If I ever decide to resurrect the very primitive comic strip I did briefly that featured this ship several decades ago, I might use her in a visual novel or something, but it'd have to be 'free', unless I could secure commercial usage rights for the donor models, if I were to do the Patreon artist thing.
Ahh well, I like how she's turning out anyways, although I have a number of other tweaks that I still want to do.
Just had to share. As for the other ship I featured in my OP, well it's on my to do list the next time I feel like doing another starship Kitbash in Daz.