https://backpack.tf/profiles/76561198349886701#!/compare/1520121600/1520208000 - Warmer sale for 27, which helps validate your mini

Minigun was adjusted to 34.5, which would put the low end here at 67. Honestly though, with an unknown B/O for the third sale that I would expect to be lower than 72 given the tendencies of the seller, I figure that accepting this as close enough is reasonable, as the current average is likely closer to what this should be if we did know R+ubi's buyout, and the average technically being "off" by a key and a half still makes it a fair estimate at this value.