That's pretty much what I do too; I'm holding ETFs in an execution-only Davy Select PRSA.
> There will be a 0.75% annual fee for any ETF which is not domiciled in Ireland/UK.
This doesn't just apply to non-Ireland/UK ETFs, but it applies to your total account balance. Cash, ETFs in or outside Ireland/UK, or other investments you may make make: there'll be an annual 0.75% charge on the overall account balance. The individual ETFs you invest in will have their own annual charges as well.
> Additional Investment Products - Individual rates will apply and will vary depending on products offered. Fee rates will be made available in advance.
As I read it, this is not relevant for ETFs, no.
It probably makes sense to call Davy and ask them about anything that you're uncertain about.