I've corrected myself on the new E200s for Shields these have been based on kuyoyos posts

if darts 35190-95 are confirmed to go to Hartlepool that leaves 14 buses left,  there are 14 MANviros at Shields these will probably transfer to Slatyford for routes 6/7/8,
to replace the temporary allocation of Darts and MAN 18.220s