For the P fares on ET, you only have 2 choices of where to credit them. ET's own Sheba Miles program and Air China's Phoenix Miles. Of the two Sheba Miles is considerably more attractive unless you live in China.
Sheba Miles is 30k miles round trip for intra-regional in North America or Europe plus taxes, which are very minimal on UA flights. They offer one way awards at 75% of round trip price. It's extremely unlikely that you'd be using the miles for upgrades since upgrades in the Star Alliance Upgrade program are only on Y and B fares (for the most part) and those are frequently as much or more than a P or Z fare itself.
With regards to your other flights, you can check a site:
www.wheretocredit.com and put in the airline and fare code to see what it would earn in ShebaMiles.
Unfortunately I don't believe that ET status matches. For a Star Alliance status match you'd be looking mostly at TK but as you know, the ET P fares a 0% there. I want to say these days as well that it's usually offered as a challenge so you have to have some TK flights to keep the status.
Your 2x BOM-VFA flights are worth a bit over 17k miles, so it's certainly something that's a shame to waste, but also doesn't go terribly far in redemptions since ET's doesn't have an overly generous short range award chart like BA or UA. If you throw all of your *A flights into ShebaMiles you'd likely get into the range of a one-way redemption in Europe or North America. In Canada that could actually be fairly valuable where domestic flights can be quite expensive.