Maybe, If you don't mind unhappy customers. I'm pretty sure the ones who purchased the crankshaft assembly and primer casting won't be very happy with their purchase.
As for the tool head, I sell a nice complete tool head with powder slide housing for $250. If you add up all the parts that tool head is missing, it comes to $138 plus shipping, The tool head customer spent $140 plus $10 shipping, so not exactly a bargain.