I have a SS top mount mani that is not cracked...Has an egay 42./.48 turbo I bought brand new years ago and only used it for like a year(However i do not know if it needs rebuilt or not, shaft play is normal for a used egay) attached to it you could have w/it.

Also have sr370's that were in same motor as ^, in rail w/good fpr all work well. It was my daily and I had no fuel issues so I know they are good.

I have several oil pans, I could drill and weld on whatever size you are looking to run and i'll make sure you can keep your a/c if that's a priority.

PM me if interested