With satellites it isn't a bad idea, but you'll always have PACE to bear in mind.
As for today's stuff? I don't know what I could say about the HF side. Open source info is a bit vague (or was a few months ago when I looked for it) and rightfully so. Satellite has changed some in the last decade, but the differences are in software and capabilities, not hardware. By that I mean the size/ weight has decreased little; the capabilites are night and day however.
I'm sure there's better stuff out there, but the best piece of gear I made commo with was a VDC-400,
www.viasat.com. I liked the ability to send any file, anywhere over any secure means at my disposal.