if you bought that DA for $900 with a thrown rod, you would have to spend at least $1500 fixing it if you do it right... new crankshaft, rods, bearings, probably will need boring and honing because the rod probably hit the bottom of the sleeve or the piston twisted, or the rod came through the block, which would call for a new engine, and last time I checked, a decent B18A still goes for about $700 and up... so by the time you were done, you would have at least $2000 in it... plus, if it had a bad rod, someone was probably running the shit out of it, which means it probably needed a lot more stuff...