Am I right in thinking that the RFU agreed to fund your academy whilst the seniors were closed down?
So you'd still have the kids to call on; and I'd imagine you'd be first port of call for your ex-academy players who haven't found other contracts yet. Presumably that should still give you a reasonable spine to play Championship rugby with, even if it wouldn't be upper table in year 1.
Beyond that, you'll be after the same players everyone else in the championship is after - you'd just need more of them