DEATH SHUDDER
DEATH SHUDDER
$1,500 is NOT going to give you a solution. Go to O'Reilly/AutoZone, etc. and use a loaner combustion gas/block tester to determine if you've got a head gasket leak. If it's the HG, you are looking at a much more expensive job from a qualified shop. Using an additive might buy you time (see Scotty Kilmer's videos, these additives don't work well with the HOAT coolant that Toyota uses).
Good luck.