If the Americans can make all their junk shoot, M1, M14, AR etc then there is no reason an SKS won't shoot. Handloads, new barrel, tune up the gas system, tune up the trigger, bedding. After a week or two of labour it should be good to go. No, I am not doing one for myself!
The 510 was an awesome rally car, a friend of mine started his long career as Canadian champion in one. A friend sold Datsuns back then and they pimped one with green inside, orange outside, mags and every piece of crap from CTC they could find. Put it in the showroom and it sold quite promptly. Not sure if they put the customers picture on the wall or not.