I really appreciate all the feedback from you guys. My main purpose for creating an in-house lab is for patient convenience. My practice is a higher end practice, no PPO's and the like. Since my fees are higher, my patients expect results quickly. The lab itself will probably only break even, after I pay the tech, but will help the practice grow. This is especially true for dentures, not just implant restorations. Making a quality complete denture requires several steps, mailing back and forth to the lab between each one. I haven't asked about denture stuff because I'm much more familiar with the equipment needed for them.
Keep up the conversation. This is good stuff.
Where are you located?
Here is the problem you are setting yourself up for. Just because you buy the best equipment does not mean you will get things any faster. The technician(s) you employ will be your limiting factor. On top of that, it sounds like your practice will focus on anterior units the most - no matter how you hash it out, that takes time. On top of that, what difference is it to you then if you use a Ti Base vs a Custom Abutment?
I respect your desire to increase your productivity/expand the business, but I also respectfully need to point out that your goals don't quite match up. Are you looking for INOLs? (Immediate non-occlusal loaded temps?),do you have a spa attached or a "relaxing room" so that the patient can wait 5 hours for a fast sinter Zirconia Screw Retained single? - which won't look super pretty, but gets the job done - again, not sure that fits the profile of your patients.
There are many ways to reach some of what you want, but if you're high end fee for service, your anterior works needs to be perfect. In that case, labs like Utah Valley Dental Lab (in utah),Gold Dust Dental Lab (AZ),Protech Dental Studios (VA),Valley Dental (MN) - are just a few of some of the best labs in North America that can easily service you and probably get it done faster. (I know for a fact all of the said labs are also fully Trios competent and have been providing next day to even same day INOL's for their local accounts)
I know Protech Dental Studios and UVDL have also been doing overnight (obviously the clinician pays for it) INOL's out of state as well.
Now to address the elephant in the room, not to say that there aren't amazing quality dentures, but usually those are bar cases. You've said yourself you're not interested in milling bars, so things aren't quite lining up. Other than that, usually these will be all ceramic or Pekkton cases. All of which will take a tremendous amount of time even for high skilled labs like the ones listed.
You need to be more clear on exactly what you want to achieve and it's possible we may provide some extra insight, but right now it's all too vague.