Welp, in the last month or maybe a little less, I have successfully outfitted 3 ships to their maximum Engineers potential: Cutter, Corvette, and Python.
I am currently half way to completing my engineer-modded Anaconda. It only lacks weapons mods at the moment, and I'm not in a hurry to do those because rolling the beams I want would mean I have to farm up enough mats to get him back up to rank 5 for the power distributors again. I'll probably come back to any ships that I have with beams on them and mod those after I put the PD's i want on the remaining fleet. What were they thinking tying a weapons engineer to the level 5 PD? It basically means that anyone who wants beams has to burn their rank 5 PD, something that no other Engineer that does core internal mods has to do. Beams really should be on someone else, like Broo Tarquin.
While I'd like to have done my entire fleet, one thing is clear: it takes a lot of fucking time to farm these mats, even with the recent buff. Certain mats are just obnoxious to have to wait for. Anyone who's had to wait for Modular Terminals and Articulation Motors knows exactly what I'm talking about. As such, I don't suspect I'll ever get around to modding my Cobras, Imperial Eagle, Vulture, Clipper, FAS or FGS. I'm probably only going to do the FSD mod on the Asp.
I'm going to do 4 more ships. FdL and my 3 Couriers (1 missileboat, 1 multicannon boat, 1 mixed boat). They should all go faster than these bigass ships with a million boosters and hardpoints to have to farm mats for. Plus, I really just want to get back into a Courier. Engineers makes you feel trapped on the ship you're flying until you're completely done upgrading because you don't want to give up the mats when switching to a ship that has less or no storage. I also wish there was parts storage so I didn't have to own 3 couriers, rather being able to just swap out the engineered part at my leisure. Maybe in another patch or two FDev will have gotten it right.