Hi Tyler,
Ok no worries ,I haven't seen that much of the older Ryobi equipment thrown out these days ,I think the old Ryobi carby would fit an old Echo trimmer with a little modification.
A second hand Snipper motor is a better engine to use in a Blower vac because the Blower Vac engine wears the half crank bearings out quicker with the fan on one side.
Cheers
Max.