Engine Replacement 3.6l v6

Hi, I just bought this cadillac for $1,500 in Los Angeles and brought it back to Fresno. It needs an engine as it was burned oil quickly with the previous owner and ran dry. This will be my first engine replacement job but i have plenty of experience as I am a self employed mechanic and have done my transmission and also am finishing the completion of a 2 post lift I just purchased that is in my residential garage. I would really like step by step instructions on what is required and also how to avoid messing with the freon if possible. Another thing, having both an engine and a 2 post car lift, would it be easier to take it out from the bottom or top? Any and all detailed instructions and advice are greatly appreciated.
Thank you, you guys rock!