Conquering HWs in Proportions mod

[AMF]

A fellow proportions player is wondering how one most sucessfully goes about conquering a homeworld in the latest proportions mod. I confess I haven't tried it, but I also am curious since I might need to defend my homeworld from him. His basic question is:

"Have you tried conquering a homeworld in Pro3...I'm beating my head against the wall with this. Huge numbers of weapons platforms with tons of missiles, tons of PD and tons of shields. If I get close, I get hosed. If I stand off and fire missiles back, the enemy shoots them all down. I don't think I can pay maintenance on a big enough fleet to overwealm this stuff before I run out of resources. Now I'm experimenting with some up close battle wagons with a
handful of planetary napalm and tons of PD combined with a large fleet of small missile boats to hammer away from a distance. It's an interesting exercise but so far I've replayed this invasion 4-5 times with different
configurations and gotten nowhere close to winning."

I think the earlier Proportions mods had it a bit easier - I've seen a homeworld get "liberated" in Proportions #1 game...but have never tried in in the latest mod.

Anybody have ideas?

Thanks,
Alarik