bolts for 88 hp 1995 V4

[1986 Newport]

I need to buy all new bolts for my engine. Had an exhaust leak and after months of work and a trip to the machine shop I have the long block ready to reinstall. The fasteners in the exhaust were not stainless and I think I want to go that route this time. I need the 20 or so 1/4 20s and the 4 studs (they were stainless) between the block on lower unit. I have found them by the part number but they are pricey.

Where do you buy bolts? Should I just hit fastenal tomorrow or can I order them all online?

[boats.net]

We only have the original OEM parts, probably have to find a local store that sells stainless hardware.