Alternator cover gasket for 85' vf500?

I just got done adjusting the valves & rebuilding the carbs on my 85' VF500. I put it all back together, fired it up (it runs & sounds PERFECT), but now it leaks oil out of the alternator cover. The gasket tore during removal of the cover & nobody seems to sell it anywhere.

Do I have to make a new one out of gasket paper?

Can I use aircraft crankcase sealer in place of a gasket?

I use the aircraft crankcase sealer on my Mercruiser Alpha One boat outdrive when I change the disposable water pump impeller & it works great.

I kind of dread having to make my own gasket as the sealing surface is very narrow & I don't want it to look like homemade crap.

 

I have cut side cover gaskets using this method. Place the gasket material on a flat smooth surface, position the side cover on the gasket material, hold it firmly in place and tap around the edges of the cover with a rubber mallet,this will make an impression in the gasket material. Use the proper size hole punch to cut the screw holes then cut the gasket out with an Xacto knife.