I would like to allow users to copy/insert a specific range ("SPEC") in between any row they select.

I've been able to do the following:
1. Insert a blank row over a user-selected row (prompted with an input box)

1. Copy/insert a specific range ("SPEC") above the range itself ("SPEC")

But what I would like to do is:

1. Copy the specific range ("SPEC")
2. Prompt user to select a row
3. Insert the specific range ("SPEC") above that row

Here is the current code I've gotten to, but it's overwriting the active range and just inserting a blank row. I can't figure out how to get it to paste the copied selection where the user wants it.

    Dim Rng As Range
    Range("SPEC").Select
    Selection.Copy
    Set Rng = Application.InputBox("Select a row", Type:=8)
    Rng.Insert Shift:=xlDown

Any ideas or leads as to what I can use to accomplish this? I'm a self-taught user so I'm sure there are tools out there that I'm not aware of.