it's tougher than it appears, when the engine is still in. YOu have to be able to reach those bolts that hold it to the block, and be able to push that 5 inch bolt through the long hole....i used a long pipe to lever up the engine, up and down, til i was able to push that bolt in easily and fit the nut on .
Don't tighten up any bolt til all are in place. If i remember correctly, i put a block of wood under the oil pan and took a bottle jack to raise and lower the engine slightly.
Check your trans mount as well at same time--they kind of go hand in hand. Trans mount is super simple to replace.