Questions about the Mopar Performance 340 Replacement Block P5007552AB

Thinking about building an all-new motor for the '69 Dart. This 340 Replacement Block P5007552AB looks like a good place to start. Couple questions though:

1) Is it actually bored/honed to 4.040", or will it need machining? One place I read says it comes rough bored only.

2) Will the 90° oil filter adapter off the old 340 fit on this block? I ask because I have read that this block requires a "special" filter p/n 05281090.

3) Will I really need to drill oil drain holes in the lifter valley?

4) In the "Big Inch Mopar Small Blocks" book, they have this statement, which is extremely confusing: "340 replacement blocks have stock 318 LA-style motor mounts, so they can be used in any vehicle that was originally equipped with an LA small-block engine. The left-side 318 LA motor mount on this block is different from that on a stock 340/360 block. A mid-1970s 318 left-side motor mount must be used when installing this engine/block in a vehicle that was originally equipped with a 340 or 360 LA engine".... So will it or will it not drop into a '69 Dart that came with a 340? If not, what is the P/N of the motor mount I'll need?

Thanks! I know someone here can answer these questions!