How about I let you borrow some weapon parts? LOL (elitist comment for fun)... Really though. I can say that I didn't re-roll any other weapon more than the primary I used more than a few times before I got lucky with a good roll and moved on, so I can't feel your pain on that one. I also play a lot, which in terms means more engrams/drops, and more parts/mats. Probably why I have so many... not to mention motes of light (over 2k, and I use them often for leveling up new items if I plan on keeping them... they just drop like crazy now). The only real tip I would have beyond playing more is to always level items up before breaking them down. I do this every single time I turn in bounties, use motes to level a specific weapon/armor. Good luck out there.