I am with Jim on that idea, too. The 350 is still a good motor, but for the amount of work you will need to do, a better motor would not cost you more except the additional cost of the cylinder block and crank shaft.
In the mean time, you can drive and enjoy the car as it is. with the new cam, lifters and timing chain. The cam bearing wear is not a super-critical problem, but be very careful with your oil pressure. Make sure you watch it closely.
