In my own experience, both of my luggage compartments stay dry. My doors leak though. Some have theorized that the modern door seals are different
enough from the original that that is a cause. I would also suspect that most of us (certainly myself included) have not rehung our doors as accurately as they were hung at the factory. When mine was new, there was a slight leak in the passenger door. Now it is "a bit more." It's all part of the fun of owning a vintage Lotus!
I have seen several cars when they were nearly new with stick-on foam rubber in the rain gutter of the bonnet or around the front luggage compartment so some have had a problem there.
The guy who installed my windshield would not guarantee that it would not leak. Thankfully, it doesn't and never has.
I would wait to see if and where you have any leaks. I would only use a drill for draining body work but would stick with seals to keep the water out of where you don't want it. Here's a catalog that might be useful (
https://www.steelerubber.com/universal-parts).
