That's part of the character idea. While he has a ship archetype associated with possibly less-than-honorable jobs, and collecting debris could be seen by some as "raiding a grave", the character himself will have nothing but respect for the battlefield, and will always look for survivors and SSPs first and foremost.
I have been thinking about the specific custom parts on the Yggdrasil, which would likely include the previously mentioned paint job (He'd be easily identifiable as himself rather than a pirate/merc), a slightly modified control system for one person to operate the ship, MAYBE an enlarged cargo area, and a very custom grappler arm system, perhaps close to what was seem in Outlaw star. While primarily for careful manipulation of objects outside the ship without relying on a tractor beam-like device, or for objects that require external repairs in dangerous areas where a civvy mech (with minimal radiation shielding for instance) might have trouble. This would require fine control though, and would likely have an independant computer system. I have recently been thinking of combat applications this can be used for, but am not done doing so, and their combat capacity may be limited in function to a pair of multi-directional blasters while the Yggdrasil's shields are in place.
In addition, the Grapplers could be set to automatically push aside large bits of debris to avoid stressing the ship's shields and spike systems, and could also be used to manually sift through debris where specific types of weapons fire has been discharged to make normal scanning difficult. Furthermore, if he wished to bring debris inside the ship, he'd have to lower his shields to do that, and the grapplers would make a good supplement to the spike to protect the vessel in a collision-prone environment. Grapplers, at least in the salvage area, could be a nice upgrade. Also, while pretty useful, it isn't anything technologically groundbreaking. Still, something that big would likely require approval. Would it require approval, and if so, is it something I could get installed onto the Yggdrasil?
Edit: Given the nature of the high-collision risk environment, multiple small thrusters to increase the Yggdrasil's normal agility to permit it to move in unconventional directions may be prudent as well. At this rate, I may have to submit an application for a full-fledged Vampire Variant.