Wes's method was mine too. A new 4R pan was 20 beans, an embossed gasket (the only way to fly. I'd do this no matter what other parts you use) was 10 and the filter was 10 or 20. All Ford parts.
I've seen the AOD guys do Dan's method (using the appropriate 4x4 filter too) and report good results. I just haven't done it that way.
If you have a hankerin to install an inline filter (using an FL1A type filter, or just a small self-contained inline filter), now would be a time to do it.
Good luck.