Digital BW, The Print

I'm renovating my workflow and I'm looking for better ways to approach 
soft proofing. 

Right now I create custom dot gain curves using Tylers instructions.  
I use a spread sheet found in the files section to calculate the dot 
percent from the density measurements of a 21 step wedge.  I save the 
file without embedding any profiles and use the soft-proof feature of 
photoshop when working on the image.  With a calibrated monitor this 
works really well.  If I only had one ink/paper/printer combination 
I'd leave it the way it is.

However, there are small differences in the soft proof profiles for 
each of the paper/ink/printer combinations.  If I want to print the 
same image on different papers I need to add another adjustment layer 
and go through another print/proof cycle.

Two alternative approaches have come to mind.  

1.  If I can create a custom dot gain curve for the soft proof is it 
not possible to use the same density measurement to create an 
adjustment curve for each ink/paper/printer combination leave the 
image in some common space like gray 2.2 and apply the curve just 
before printing?

2. Can I just leave the image in some common space ( gray 2.2 ) and 
use "convert to profile" with the custom dot gain curves as the target 
space?

These two approaches seem like a color-management-lite approach but 
still have the advantage of having one 'master' file with different 
children for different ink/paper/printer output options.

Does this make sense?  Are there better options?  I know these 
approaches don't handle tones at all but I'm OK with that.  How do 
people who proof with EEM and print on HPR manage this issue?

As always, thanks for your help.