First of all, I'm not sure if you're aware, but they have (or in the process of) replacing PILAPT with Cut-e assessments. Not sure of the exact differences, but just be wary of that. Secondly, the tests that made up PILAPT were designed in such a way that you need to be good with hand-eye coordination, dynamic and selective attention and memory etc. You don't need a ppl or aviation background specifically to clear it ( I went in with 0 hours and cleared it, twice). However getting a ppl can be a decision on its own factoring in what course you are going for (MPL will give you no credit hours but ATPL route might), and I imagine you won't be getting on any course until at least for next 6-7 months if you pass today, so it might certainly be a good idea, but don't hold up your selection process just to do ppl, go for the other way round.
Feel free to PM me if you need.
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