Depends on what you want to do.
The 69 block is not made for hydraulic lifter's IIRC. You'd have to do machining and retrofit lifters (EXPENSIVE) if you want to use a hydraulic roller cam...otherwise you could use a solid lifter cam.
That is a good price for the block...depending on its condition. Check the bore size. If it is over 4.030 I wouldnt mess with it.