Yes, sourcing the boards, tray, chips and having it all installed/calibrated by a tech would be cost prohibitive. On another note, I see you're in a RUSH cover band and assume you're striving for authenticity with the Taurus and possible OBXa? I strongly urge you to reconsider bringing an OBXa on the road/to many gigs. It's insanely complex, sensitive and HEAVY. Please, do yourself a favor and at least try a Matrix 1000 module midi-ed into your MS2000. You'll get authentic sounds at 1/4 the cost and 100% less hassle. I love my OB but that's just my 2 cents.
-rock on, new world man
Voyager, JP-6, Pro-One, 800DV, CZ-101, VL-1, Micron, Solina, OB-Xa, JX-8P, Sid Station, xoxbox