You might cut to the chase and just use a Bulgarian blonde stock with the 'flute' cut into the side. You can always find the original pistol grips because so many came in with AMD65 kits. If you decide to hold out for an original FEG stock, be aware of a few things - the mil-issue wood stocks were usually teak-stained, and you probably would not be able to make the stock blonde again. But if you got such a stock and like that color, you could stain the rest of the wood to match. The FEG blonde stocks are smooth-sided with no flute cut in them. They have the sling loop mounted on the bottom, not the side. It will have the military buttplate with trap door for cleaning kit.
Notice the slight gap at the receiver - you need the clearance to prevent splitting off chunks of wood. it's very slight - less than 1/16". If you get a new stock it will be too large to enter the receiver fully, so it has to be fitted. Be very careful/methodical in fitting so you don't end up with a crooked installation.