> The MPC 5125 eval board is 119 US$

That development board by THTF/LimePC for the Freescale Tower System is not *the* MPC5125 eval board, which is rather the ADS5125 by STx (2000 USD). The same as with the MPC5121e: There's the ADS5121 ("Hellrosa") eval board by STx for 2000 USD (or 500 USD for an older revision) and there's the much cheaper MPC5121e development board by THTF/LimePC for the Freescale Tower System.

> The 86xx ship unfortunately has more or less sailed

Freescale at least say they'll ensure its availability until 2018 ;-)