I've built most of the 1176 clones, repaired countless Urei models and even fooled with adding Neve front ends. I now have a range of 1176 clones that I like on different sources.
The now discontinued MC76 'Purple kit' (Class A Rev E Blackface) was a totally fantastic minimal starting point.. and without instructions your left to your own devices to complete the build, both in terms of parts and hookup. This has more balls than the Mnats version, very cool on Bass guitar and Lead Vocals.
Mnats is now doing a Class A (rev D Blackface) pcb set and I'd totally recommend this, I built mine with an Altran UTC clone/Purple Tpad front end and a CineMag backend. Other easier to find configurations can be implemented also. I like this better on drums and "all buttons in" over the purple.
The G1176 is a Class AB based on a later Rev Silverface with an IC front end, The pair I have here I use quite a bit on Acoustic guitars, they don't have as much gain as the earlier Class A monsters and they don't hold the tone in extreme compression.
It's defo not a cheap way to get an 1176.. what you don't spend on a retail unit... you'll spend in time, blood, sweat and maybe tears!
good luck if you go for it
