You can take CR 34 past the BM 8 mile entrance & 12 mile entrance, a short ways to Soldier Meadows Rd turnoff. It is a gravel road, OK if you have decent ground clearance. Great views of BRD.
Further down 34 is Fly Geyser Ranch and the road turns to gravel. Fly Geyser is private access, but you can see it from the road.
There is a new BLM office @ the Transfer Rd just past Gerlach 447/34 junction. Don't know if it is open this time of year, but there are kiosks outside that describe the history of the area.
I have found the hot springs (Black Rock and Double Hot) too hot for soaking, at least in summer, but have never been to Trego (east side off Jungo Rd). Don't know if you can access Frog Pond this time of year. You should be able to see the steam rising from numerous small hot springs along the way. Fun to stop & check those out too.
Bruno's motel rooms are decent. You can book them at the Casino bar.
It is gorgeous out there and really great to experience BRD outside of BM.