Engine is pulled - 273 rebuild or replacement 360 crate?

If we're throwing out hypothetical builds to the guy, try this on for size:
Have the 273 block sleeved, and bored out to size for some decent CR 318 or even 340 std. pistons. Keep your crank and rods. Throw in a nice .450-.475 ish cam.
You get to keep your existing block and still show off the "273" casting numbers; and not have to change a darned thing to make it fit (because it's the SAME engine). But you'll absolutely confound the Bowtie and Blue Oval boys as to how a 273 just smoked them...
8 sleeves for a 273 that's not a commando? or even original to the car? no thanks.

can't see the 273 number without crawling under the car. besides, a 273 is virtually indistinguishable from a 318, 340 or 360 to most mopar guys let alone the chubby and ferd freaks. nobody would know the difference.

value for money would be a 318, mas dough and pain in the dick factor would be 360 with more power potential. but with that potential comes the added expense of having the supporting cast...