As the others have stated each one will be a bit different. I have used the following combination. All fit like a glove. In any event you will have to make room for the 4L80E, and the crossmember will need to be modified.
Frame mounts #3379 www.carpartsdiscount.com
Engine adapters Dougs SK100
Motor mounts Energy Suspension 3-1117G
If you are using truck accessory mounts you will most likely need to change PS pulley to Dorman 300-123.
Don't waste time with the truck pan, it wont work out well. I used Canton 13-274 with pickup 13-275 and filter mount 22-631.
There are a host of others as well that won't require cutting the k-member.
I can supply pictures if you are interested.