Ryan:

That will be more than enough. Be sure also to get the right filler for the job. For injection I used the 404 adhesive filler (white powder). If you have to fill in a hole exposed to the outside, use the maroon colored filler (I don't have the number with me right now).

To answer your question, yes, that is enough and it is the right stuff. Your questions are completely related to this thread so don't worry about it.

Take care,

Scott Laughlin
Omaha, Nebraska