Besides the publisher, I think On Military Matters carries V&B. Note that it does not bring significant mechanisms for command-and-control friction; Frank Chadwick's expressed view is that the way to reflect that is with actual multiple player-commanders and limited communications. My impression is that many people find it otherwise to have stood the test of time better than Sam Mustafa's (also splendid) descendants.
Regarding DBA adaptations (if tossing for PIPs suits your ‘friction' needs), I think one can still find the "DBA Extension for 1500-1900 AD" produced by Humberside Wargames Society online, despite the Fanaticus website being defunct. I'd still recommend Barker's own, stand-alone HF&G 1.1.
Arofan Gregory presents what I think is a very interesting, interactive treatment of maneuvers and counter-maneuvers in The Sound of the Guns. That's a very brief (4-digest-page pamphlet) document that's freely available online. The combat resolution method is also extremely simple and quick, but I commend it mainly for possible interest in grafting the more interesting aspect onto another rules set.
Gregory's old (1990s) rules set Republic & Empire is pretty elegant and adaptable, but if memory serves includes no examples of application to 18th century subjects. He also posted that online for free distribution, but I don't know about current hosting.
Some folks released a number of period-tailored sets based on the Napoleonic Elan system. The still Napoleonic Elan Deluxe can still be found online, but those "rival" works seem to have vanished. If you do find them, and they sufficiently meet your "simple" criterion, the commonality among them (while providing more tailored material) might be appealing.
Shane Lacey Hensley's Fields of Honor is long out of print, but might be found second-hand. That again focused on the 19th century, but there was also a spin-off for the American War of Independence and I think it's fairly easy to apply to earlier conflicts if one knows a bit about them. The mechanics are fairly straightforward, while bringing a lot of interesting "chrome" options to add flavor to games. Scale adjustments provide for everything from small unit skirmishes to big battles, without fundamental changes to the rules.
For specifically 18th-century material — even if not using the battle rules (which would require modifying some bits calibrated to 12-figure units) — Warfare in the Age of Reason includes both a nifty treatment of sieges and the Sport of Kings campaign system.