i have bought 500g of dark spray malt not realising i need 1kg

and some glucose but i read this is not good for stout, would it be ok for priming?
i am waiting for submersible heater to come from eblag but could carry on with out but i may need to be patient and brew this right.
shall i get some more spray malt or add sugar half and half?
is glucose a no no for stout?
what are the time scales for brew time to bottling/barreling time ect?
so many questions....so little time ha .
cheers for help in advance cant wait to get it under way but i dont want to spoil the ship for an apeth of tar!! cheers glyn