Bigs, do you know if your K member is a regular E body K member or is it a Hemi K member? I'm assuming its a standard e body K member that someone fabricated their own home made engine mounts.
There would be two avenues you could choose from to replace the existing mount system.
1. Buy the Schumacher mount conversion system.
2. Have your K member converted over into an original design Hemi K member.
If you choose to go route 2, then you would need to contact Mega Parts for the K member conversion. they're the only ones I know of doing this. This would entail sending your standard E body K member to them and they would convert it over. Route 2 system is a total of 6 parts plus studs and quite a bit of money to do. But then it does look OEM corrrect. Schumacher system is about $260 bucks and a whole lot less time and run around.
Below is a picture of what an original Hemi K member looks like.
And here's a link on the Hemi mount parts needed.
http://www.megapartsusa.com/products.asp?cat=10
