Manila 2.1.1919.3217 runs but is pretty unusable right now (you cannot see anything past pixel 640, there are 160 more pixels of stuff down there (all menus, slider - right now I worked around the slider issue by using the retractablte slider for VGA) and the icons are not centered when sliding (I do not know why because I thought the rhodium screen was 480 px wide just like the TP)
I do not know anything of sashimi, what cabs did it install? it must have been something that breaks the ROM's ability to boot.. sorry I cannot be of more help. The workaround would be to (I know, it sucks) hard reset, not use sashimi and just install the cabs normally. see if that helps. if it does make up a sdconfig.txt in the root of your storage card that calls those cabs to be installed at autorun.
or as jdm said, just cook your cabs into the rom with the kitchen
