Soldato
alpha/beta access is tied to packages not your account. There was talk about it being locked to the account once bought but it never happened. You'll get a warning that you're about to melt your last package etc when you go to do it because of this.
What you could do is buy the aurora MR starter package (has SQ42, PU, beta access) and buy individual alpha passes e.g. Arena Commander. Then melt everything else.
The alternative is simply to wait on cross chassis upgrades, they're coming for every ship once it's flyable, the Retaliator is likely going to be the first multi-crew ship which is seeing as it's the test bed for multi-crew.
This is what i'm going to do depending on how much the Tali goes up for sale for. Yes it means buying a pass and being one of the last to join but i'm not bothered.
They won't allow melting game packages and keeping access as they will make less money.
I have $375 to spend so should be enough.