AutoCAD .NET :: Swap Titleblock Between 2 Drawings

I have 2 files and I'd like to copy a titleblock from a template drawing and use it to replace an existing titleblock on an in progress drawing.  The titleblock on the in progress drawing has attributes, and I'd like to keep them when I put in the new titleblock.  The attribute tag names between the 2 titleblocks are the same.

I do not know the exact names of the titleblocks, only that they contain the words "title block" somewhere in their name.

I've developed for Inventor for a while now, but I'm completely new to AutoCAD.  How might I go about this?

I believe the basic steps would be something like this:

1.  Identify which object to copy from template sheet.

2.  Save that object to memory

3.  Identify object to replace in existing drawing

4.  Copy attributes and get position of existing titleblock

5.  Delete existing titleblock

6. Insert new titleblock and copy in attributes

I've taken the Autocad tutorials, and I've searched for relevant posts on ThroughTheInterface.  Is there someplace else to look which might give a more in-depth example of what I'm trying to accomplish?

Win7 x64 - 16gb ram
i7 3610qm
FirePro M4000
Inventor 2013
ETO 6.1