We are influxdb enterprise customers and looking to do the same thing. They've kept their enterprise offering on 1.x, which has kept us mostly happy, but seeing what's going on in their OSS stuff is horrifying and we're looking to avoid the crash and burn at the end of the tunnel.
We announced the availability of the v3 successor to Enterprise v1. It supports the v1 API. We're still building data migration tooling, but if you're interested in testing it out just email support or your sales rep.