But with the loan deadline of 5pm approaching, Middlesbrough boss Gordan Strachan is suffering an injury crisis at the Riverside and may recall Walker from his spell.
However Moore is more optimistic of keeping hold of livewire Bell-Baggie and striker McAllister, from Reading and Exeter respectively.
The Millers are also looking for centre back cover for the run in, having already secured the services of Marcus Marshall and Gavin Gunning until the end of May to cover the possibility of the play off final.
We'll keep you updated on any activity.