hydro is far from garbage for people with no tolerance, which i assume applies to OP
vyvanse is lisdexamph, sorta a time release dex-amph. i don't know what routes of administration work with it, if you can't snort it then recreationally it's not nearly as good (i'm not a stim person but i can tell stim users like their nose candy )
personally i'd do that trade any day. it depends on whether OP likes stims, opies, or just downers, or all three