would this be the correct solubility or am i overthinking it?
You need to be clear about how you want to express your measurement because it's not clear.
If you say a compound has a solubility of X g/mL, this means that in 1 mL of solution
, there is X g of the compound.
A solubility of X g/mL does not mean the solubility is X g in 1 mL of solvent (because the volume of X g of compound and 1 mL solvent - i.e. volume of solution - is not 1 mL).
The same is true for % concentrations. 36% HCl is not 36 g HCl in 100 g of water, it's 36 g HCl in 64 g of water.
These measures express solubility of a compound relative to the whole solution, i.e. solute vs solution = solute vs (solute+solvent).
What you seem to be calculating is the ratio of solute vs solvent - this type of relationship is used in molality (moles solute vs mass solvent) and mass ratio, but I can't think of other examples.