I already had the instrument cluster replaced for its own adhesive leak, and combined with the our hardware/driving habits that result in very little benefit from MCU1 to 2, it's not cost effective to pursue MCU2.
I set-up a service appt in the app for an estimate of a concurrent replacement of leaking touchscreen and pre-emptive Tegra daughterboard swap (to see if they would reduce labor for doing both at the same time). Just got my estimate back...
MCU Touchpanel:
MCU SUB-ASY, SHIP, OGS DSPLY (1084333-00-C) $550
Labor $214.5 (1.1 hrs)
Tegra Daughterboard:
MSX VCM TEGRA REV-B/C (2728212-S0-B) $120
SCR,M5X6.PH.TRX25.SST.W/PATCH (1010058-00-A) 12x$0.20
ScR,M3X4.PH.TRX10.W/PATCH (1010052-00-A) 3x$0.15
Labor $243.75 (1.25 hrs)
So, not only did they not reduce the labor cost for working the daughterboard while the touchscreen is already out for a replacement...they increased the labor from the 1.1hrs previously billed to 1.25hrs.