yup as said above, go for metal weights as you can chop/change the actual weight of each bar instead of having a sand weight specifically for 1,2,3,4,5kg etc
a bench is superb, one which is narrow enough to allow shoulder movements when bench pressing.
recommend getting a chin up/dip bar also, can get ones to screw to walls or fit in door frames fairly cheap.
then all you need is a guide to excercises, thousands out there but go with one which is simple and caters for your needs/time/equipment availible
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