How cool for you! Enjoy.

Probably will cost you as much to keep it in tubes as it originally cost, as there is little call for them these days.

There are a lot of OTR shows on the internet, but, as you probably know, very little actual over the air radio drama that I'm aware of. In SoCal we have two programs that overlap each other on different stations.

KFWB (AM980) at 10pm Saturdays broadcasts "The Twilight Zone" hosted and narrated by Stacy Keach. It has adapted many of the old TV scripts, and also has some original scripts. I believe it repeats into the early morning hours, but I've fallen asleep by then,

KRLA (AM870) Wee hours of Sunday morning ('til about 5AM) broadcasts OTR shows and some re-creations. I sometimes hear these if I wake up around 3 or 3:30--old folks are prone to poor sleeping habits.

Both are syndicated, and may be available wherever it is you live.