Fwiw, I have a set of the aftermarket door handles installed on my '84 (from LMC) and I'm pretty happy with them. Will they stand up as long as the originals? No idea. The chrome on my originals was starting to get pitted and peel, so I wanted a fresh new set to go with my new paint job.
The truck lives indoors now and doesn't get driven all that much (compared to a daily driver in the weather) so the handles will likely last forever at this rate.
One thing to note is that the new handles came with studs (I think) instead of bolts (for inside the door). The body shop that installed them said they reused the hardware from the original Ford handles because the studs wouldn't work as well as the bolts (or something like that).
1994 F150 4x2 Flareside. 5.0 w/MAF, 4R70W, stock.
1984 F150 4X2 Flareside. Mild 302 w/ 5spd. Sold.
1980 F150 4X4 Flareside. 300i6 w/ 5spd. Sold in 2021.
1980 F100 4X2 Flareside. 351w/2bbl w/NP435. Sold in 1995