Here is my secret weapon for the do-it-yourself engine drop...
When you put the engine on the skateboard it lets you easily move the engine around by steering it by just leaning the whole engine. It is really fast for accurately positioning the engine when it is time to put it back in. You can roll the engine under the car and by having a set of cheap jack stands for each corner of the engine/trans mounts, you should be able to have the main 4 bolts tightened in 10-15 minutes.