Curtis Samuel/John Brown for Darren Waller

Thinking about offering Samuel/Brown for Waller in a full ppr league. League has WR/TE flex spot. Current roster:

RB: McCaffrey/Carson/Kerryon/McCoy/Coleman/Justin Jackson
WR:Hilton/Lockett/Boyd/Samuel/Gallup/Brown/McLaurin/Metcalf
TE:Vance McDonald

Think this is a reasonable offer/is there any package you’d offer? Waller owner has Kelce.