Digital BW, The Print

I would like to ask this newsgroup for recommendation in setting up a
workflow for hardproofing a print with QTR. Tuis is when you want to
use an inexpensive printer (i.e. an Epson r220 or a c88) equipped with
inexpensive paper (i.e. Kirkland) and inexpensive inks to proof a
large format expensive printer (now that you cannot service it
yourself any more) equipped with expensive paper and ink.
Of course Photoshop handles the double profile conversion for you in
the print dialog, once you have the ICC's for each of the printer. QTR
doesn't have such capability. Therefore, you have to do the
conversions manually. I guess, the right workflow is the following:
1) Profile the R220 for the inexpensive paper and inks and with the
QTR setup you will use for the proof
2) Profile the large format printer for the expensive paper and ink
and the QTR setup you will use in the final print
3) Convert the image you want to hardproof from the workspace profile
to the large format profile with perceptive rendering intent
4) Convert the latter (already converted) image to the profile of the
inexpensive printer/paper/ink using an absolute rendering intent
5) Print the image obtained in 4) using QTR with the inexpensive paper
and inks and with the QTR setup used in 1)

The real problem with such workflow is that QTR-Create-ICC, that
everybody uses to either converting before printing or softproofing,
doesn't handle absolute rendering intents. Anybody would suggest a
workaround or a recommend different workflow?

Thanks.
  Daniela