These seem to be amongst the less desired of the gold Botkiller weapons. The majority have B/Os of 2 earbuds, with some trying to get 3 on Outpost (http://www.tf2outpost.com/search/24846448).

Like Orange's (now accepted) suggestions for the regular variants, I've put the price at the halfway mark between 2 earbuds.

Some statistical info:

- stats.tf has only spotted 4 of these in the wild (several more on Outpost though). However, this figure could be somewhat misleading right now, but as time goes on, it should become more reliable. (http://stats.tf/item/801/Strange_Gold_Botkiller_Sniper_Rifle)

- This item was added in the MvM update (on 8/15/12, 8/16/12 UTC)

- Botkiller items of both variants appear to all be of strange quality