I know how you feel. When I found Scrap Yard Knifes they were offering the mil-regulator. I didn't need another knife but after reading the spec's I needed that one.
Then I found a used (new condition) scrapper 5.
And, a Swamprat Ratmandu.
Then 2 War Dogs.
Now I have 2 Basic 6's on order.
I have still resisted ordering a 511 ... but at $90 its getting harder and harder to resist.
I feel like Captain Kirk and the Borg - resistance is futile.