Calculate amplitude and phase of a filter cricuit

[Guinness666]

I have the values for all the voltages and currents. I'm wondering how I go about it, given that v₃ = v₃₀ (cos (Θ₃) + isin(Θ₃)) and I have a value for v₃. Since v₃ = i₄ * Z where Z is C3 and R2 in parallel, there'd still be 2 unknowns. I feel as though I'm missing something obvious, if anyone could give me a little help, that'd be great.

 

[NascentOxygen]

You're wanting to calculate v₃ in terms of v₀? You'll need to use mesh or nodal analysis.

 

[Guinness666]

I already know the values of i₁, i₂, i₃, i₄, v₁, v₂, v₃ from doing a nodal analysis on a circuit earlier in this question which is exactly the same apart from that it contains resistors instead of capacitors and inductors.

 

[NascentOxygen]

So you'll retrace the steps in the analysis, but substituting
some R's with $j\omega L$ or $\frac 1{jwc}$.

 

[Guinness666]

This is the earlier part,