This looks like a great adventure. If you're going for a big engine my opinion is that the optimal displacement size is a 2007 (90.5 mm bore with 78 mm stroke). That combo keeps the most meat on the block for reliability, both on the bores and less clearancing inside for the stroker crank. Something tells me you will be a lifer on this like many of us here are. Congratulations, good luck and we'll be following your build.