Restoration woes

I’m restoring my 67 Barracuda back to stock. Unless I can find a 273 Commando engine (original was destroyed), even a short block, I will be forced to turn a 318 into a “Commando” version, complete with domed pistons and a suitable solid lifter cam. I haven’t read about anyone doing that on this site so my question is, will the stock commando cam be optimal or will I need a grind that corresponds to the additional displacement of the 318? I haven’t actually shopped around for pistons yet (would rather have another 273) but they will be good for between 10 to 10.5:1 compression ratio. I’ll be using stock 318 rods, heads and exhaust manifolds, plus the 273 4-barrel intake and carburetor and an Accurate Exhaust HiPo single exhaust. The car has an 833 manual and 3:23 sure grip gears. Thanks!