[Suicide Junkie]

Almost certainly, you need to use a reactor mount.
It will reduce the size of the reactor to be proportional to the ship size you're using.

There have been a number of new entries in the imagemod since last year.
At the moment, I'm actually compressing the lastest stuff into zips and rars in the background.

In about 30 minutes, I'll have the componentpack v26 uploaded to imagemodserver, and you can get the latest stuff, which does include some new ST mod components.