the only issue i have with the switch to forearm launchers on the crusader is that now they'll have to go through and fix the novels, which always describe the launchers as being in the shoulders. (also possibly any fluff in the TRO's referencing the placement.. which iirc is mainly the unlikely to be reprinted Project Phoenix)
I also wish the launchers were in the shoulders, but I have decided to be OK with it.
The general silhouette is spot-on, and it includes a lot of other details I love in the torso plating and hip joints which just say "Crusader" to me.
If I get ambitious, I might try a conversion by puttying over the tubes, and adding some plastic missile doors to the shoulders, but I'm not sure it really needs it.