Simple solution is to add a points system to VW like einherjar has. A new type of points you can get from doing vw only. Add all of the drops for points as well. Make the better ones worth more points etc. That way it may time some time to get them, but at least eventually you will. Instead of going 0/150 and hope that it drops.
Like say you get 100 points from T1, 300 from T2, 500 from T3, 700 from T4, 1000 from T5, and 1300 from T6. For point values say the Bodies from T3 jeuno are like 100,000 points or 75,000. HQ weapons like 200,000. Make items like Mantis eye from Kaggen 10,000 points.
A system like that would make it so you don't get all the drops right away, but at same time you will get them after enough runs. If you happen to get lucky before then more power to you.