Apply DNG Camera Profile to scan?

I am setting up a workflow to scan and process a large volume of slides.  I am scanning with a Nikon LS5000 and Vuescan, outputting as (linear)DNG and then processing in Lightroom.
For me this is efficient as it unifies my digital and analogue workflows.  I could also just output a raw tiff (not color corrected), but I like the smaller file size and the embedding of LR settings with DNG.
I have done test scans for which I then created a custom color correction profile in the DNG profile editor.  I am very happy with the level of control over color in the profile editor, and would like to use this to apply color correction to batches of scans shot on a particular film type (kodachrome for example).  I know these tools are designed to be used with camera raw, but they perform equally well with linear files.
The problem is that as the dng file was not created by a camera, but a scanner (even though the EXIF data shows the LS5000 as 'camera') I can not get the profile to show up in the Camera Calibration/Profile tab in order to apply it to an image.
Questions:
1- Is there any way to force the profile to load anyway? (LR could have an 'other' option in the profile tab)
2- Can I get LR/Profile Editor to consider the LS5000 as a legitimate camera, as opposed to just producing a generic tiff?
3- Can I somehow manually embed my custom profile into a DNG so that the embedded profile is automatically the right one?
Thanks.

I am aware of the issue with the Nef files, as I found out that they are different from Nef camera files and not read by the DNG converter, or anything other than nikon scan.
There are options though in vuescan with any scanner that allow you to disable all adjustments and export as a 'raw' file, either in tiff or dng format.  Vuescan is then primarily used to control the hardware.  The only processing that is applied to the scan is the calibration (correcting for variations in intensity in the ccd), and optionally IR-dust removal.  The important part is that there is no base curve, gamma, and no color adjustment or icc-profile applied.  For practical purposes LR could treat it as raw.
As a hamburger it would be very rare and decidedly pink on the inside.  The main 'cooking' should ideally be happening in LR by applying the base curve and color adjustments in one action (camera profile + adjustments) as opposed to in two stages (scanner software followed by PS/LR).  My objective is to minimize the 'destructive' scanner software step, as I only want to scan once.

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