Actually, both the impeller and the seal are available on Amazon. The real problem is, can it be installed?

Anyhow, this seal:
Hayward SPX1600Z2 Seal Assembly
and one of these three impellers:
Hayward SPX2600C Impeller
Hayward SPX2605C Impeller
Hayward SPX2607C Impeller
But I'd need to see photos of the pool and piping to be sure. Also, the exact Super Pump model number needs to be confirmed. A 1.5HP pump is either a SP2610x15 *or* a SP2615x20.

If the choice is to stay with the existing pump, a matching filter would be a SwimClear C2030, rated at 84GPM commercial.