Yeah, there wasn't any bill that'd actually please the Republicans on a whole. At best maybe they could've made something that the Democrats and moderate Republicans could've agreed on, but like hell you'd see something like that coming from this administration. And the Republicans would probably be too stubborn to agree to anything from Democrats even if they would've made it themselves (Obamacare anyone?)
If Trump came around and convinced a couple moderates to vote with Democrats on Bernie's single-payer
He'd go down in history. Just tell him that and he'll do it.