I work for a VAG specialist.. and I bought everything OE.. Elring for gaskets, OE supplier.. Headbolts from Febi, OE supplier, etc etc..
Yes its very common to get the oil leaking from there on a 1300.. if you look at the gasket you can see theres only a thin seal and thats where the main oil gallery is, thus where the pressure is.. there arent any modified ones against that.. theres jsut the 1272cc gasket end of.