And there's this one also,even better, already has a OPA627 and gain can be changed 7 or 2 And it has a discrete match fet output stage, I would omit R1 as the output of the Lightspeed will take it's place.
http://www.ebay.com/itm/OPA627-K170-J74-2SK170-2SJ74-Audio-preamp-DIY-KIT-/320840215695?pt=US_Amplifier_Parts_Components&hash=item4ab3912c8f
Cheers George
http://www.ebay.com/itm/OPA627-K170-J74-2SK170-2SJ74-Audio-preamp-DIY-KIT-/320840215695?pt=US_Amplifier_Parts_Components&hash=item4ab3912c8f
Cheers George