Chad re the rear shocks I would definitely recommend contacting GAZ - I sent them an email and they put me in touch with their tech department. They will ask for various info - see below
1 Intermal dia of the spring 1.9” ?
2 free length of the spring (uncompressed )
3 IS THE DAMPER LENGTH MEASURED CENTRE OF END FITTING TO CENTRE OF END FITTING ?
4 Bolt size of bottom bush ( 3/8” ) ?
5 Width of lower bush inner sleeve
6 Pic of top mount rubbers .(there are 2 types )
But once given all their appropriate info they came up with these beauties a few weeks later - and they were cheaper than expected. Just got to build the car now...