Pull engine or drop subframe?

[BBC71Nova]

So as I mock things up I'm thinking about whats gonna be an issue when I go to pull the engine out of the car down the road. I could benefit from sliding the engine back more that I already have. If I do that it will be virtually impossible to separate the trans from the engine while in the car. I'm wondering if doing this is mega stupid.

Is it common now to just drop the entire subframe assembly like you would on a late model car? It seems to me like that might would be easier.

Just curious before I go and cause myself lots of extra work later.