Lake,
Let me know how that turns out,I'm sure you will get better results concerning the flexibility you're seeking and more in accordance with the quality of the rest of your system.
I was already in the process of completion of upgrading my analog rig when about a month ago the opportunity arose to purchase a 948 in pretty decent condition and I just couldn't resist the urge after seeing EMT's bulid quality.Too bad more things in modern audiio aren't built that way,especially when you consider what they cost nowadays.
My tendency at the moment is to keep things as original as possible by getting a new EMT TSD15 cartridge and keep the phono stage as is in the 948 and keep looking around for another quality phono stage for my other rig.
Good Luck!