Need Help w/Audible Illusions Modulus 3a

An opportunity has come my way to purchase an AI M3a for cheap (friend). I am currently building my system, which consists of:

Spendor S5e Speakers
Spendor Sub 3
Arcam CD73t Digital
Rega Planar 3 TT
Audiolab 8000a Integrated Amp(trying to replace w/seperates)

As you can see it is a bit of a budget system, however the Audiolab is the weak point. I am trying to accomplish two things: First, I want to eventually incorporate an HT system into a 2-channel without sound quality loss...ie I need a pre amp that will allow pass through. This brings me to my first question...is there a way to accomplish this "pass through" with the Audible Illusion pre? Secondly, if the first question can be answered, YES, then I'd appreciate a used amp recommendation that would match my system well (roughly $1k range). I've thought of using McCormack or Muse...any thoughts?

Thanks for your help.