Maquette 1/35 Su-76 kit...

I am pretty sure that is the same Alan kit that has been floating around for years. Dragon boxed it, too. So you may have some luck searching the webs under those brand names. Good luck if you get it a set. That kit, along with the Zvezda T-60 are widely regarded as some of the worst armor kits ever. A good result can be had, but it's a lot of work.