Definitely go for Grand. If you compare the individual plug-ins' prices it's a no-brainer.

hi jbow, 
 
I have the IK Silver Twelve …it is a nice amp and I do like it a lot ….
 
I got it when i picked up The Jimi Hendrix Anniversary Collection...
 
imho, that collection is excellent , one of the best things out there...
 
Jimi Hendrix had some of the best clean tones and blues guitar sounds ever recorded  
 
IK pretty much nailed those tones in the discography section of that collection ..
 
Kenny
 
PS , the Echoplex is Bad a$$  …...I no longer feel the pain of having sold the 2 original ones I used to own .
 

I already have all but three amps in the JH collection, I might look at the other amps though.
 
The upgrade from Deluxe to Grand looks like the best deal for sure.
Thanks!
J