Advice on stroker build with cracked cylinder

My stock stroke 340 engine has a crack in 1 cylinder. I want to sleeve that cylinder and rebuild as a .040 over 500+ HP stroker but looking for advice first to see if It would be ok or if I would need an unsleeved block?
I would feel safer going 60 over with an uncracked block than running a sleeved 500+hp block with the 2"+ crack in my block (see pic). The guys at Dandy Engines here are famous for their aluminum 1000+HP gm and fords but have no experience with iron mopar 340's here in Australia so I'm falling back on the experience of the guys back home who've been there, done that and hoping for some solid advice. It'll cost me a LOT to ship a used 340 over so just wondering how much a cracked block will take trying to squeeze the piss out of it with stroked crank, 11:1, expensive ported eddy heads, .600ish list cam etc. Im I asking for trouble or...? They mentioned a greater tendency for core shift having a cracked block with this build.

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Too many people on here with positive results for me not to go for it. So I'm sleeving the one cylinder and going .040 over with a stroked crank, 10.9:1 diamonds (highest compression 40 over stroker pistons I could find), ported eddy's, victor 340, Holly 950... I'm thinking the MP Purple 4120657AE mechanical flat 312/312, Lift .590/.590 will get the most out of the combo BUT thought I'd ask here and maybe in another post to get advice on the camshaft because I'm only educated guessing the whole build... mostly from the hours of reading fabo topics, posts, arguments, experiences, etc. The experienced posts on here is priceless.