Nice to see someone who also knows Trigan! I was a big fan of it, and of the other series - 'Storm'. Unfortunately, the only reprints available are rather expensive:
http://www.donlawrence.co.uk/shop/index.php?hg=2&sg=21
€49,95 for each volume!
I've a copy of a single volume of several strips; I noticed one in the cut-out bin at the shop, so we in the colonies are aware.
For some reason, never caught my imagination the way Flash and Buck did. And, I gave them lots of slack. I even like Star Wars Episode One, just for seeing some of the worst of those brought back to life.
However, Romans with rayguns...
True! What's not to love!
Doug