360 stroker oil pan leak, pan out ready to re-seal couple of Q's

I've never tried it, but I saw a guy once use simple sewing thread to hold the gasket in position on several bolt holes until you can thread in all the bolts.
Often times, when using silicone adhesive sealant on a gasket I'll use the 2nd Gen silicone, it's more tacky/less slick & shiny, and let it cure for 10 min or so before bolting the parts together, so the gaskets don't slide out of place.