How much more is it worth?

I have a 1969 dart GTS 340 four-speed convertible. 1 of 58 ever built. I have restored the car and have a period correct 340 in it with the matching numbers transmission. I have the matching numbers block but it has two cracks in it from the previous owner letting it sit out in the winter and freezing up. My machine shop said it can probably be fixed, they need to inspect it, and they said it will be expensive, View attachment 1715846753 View attachment 1715846754 View attachment 1715846755 View attachment 1715846756 but their question was how much more is the car worth with the matching number engine?
I think you should drive it and enjoy it with a good block. If you sell it one day put the block in the trunk/crate with any other part that goes with it and let the next guy think about it and spend to attempt to make it a running Matching numbers or not. Does it have to live between the inner fenders to be or not to be a matching numbers sale? Makes me think of the guy who has a fast toy option and takes off the A/C parts to have fun on the track at times and he sells the car with the complete missing parts in a box. At times one even has to fix/restore pieces if said new owner wish's it back for hopefully B&J cool aid prices. Drive it and get lots of smiles per mile's and let us other people enjoy seeing it on the road and bring back maybe a memory. I almost bought one just like it and even the same color in blue but it was hit and bent in the front a bit and so i picked the 67 front disc brake RS SS 396 4 speed and a 12 bolt beside it instead. Thank you for my memory time and one opinion on the subject at hand.