At the moment, due to the solar cycle, the vast majority of my contacts are on 40m. With this in mind, you could try a monoband end-fed for 40m from SOTABEAMS:
It will work well with an FT-818 if you decide to go down that route, and would be about the lightest option possible. You could buy the Laserbeam filter for your 818 at the same time:
There is also a speech compressor available. Then again, if you’re going to shell out for so many accessories, mabye you would be better off with a KX2. I love mine.
de OE6FEG / M0FEU
Matt