I was going to do a price suggestion for the unique version of this one, but there is not enough proof.

http://backpack.tf/classifieds/?item=Dadliest%20Catch&quality=1&tradable=1&craftable=1

1 seller @ 6.33 ref

9 sellers @ 7 ref

2 sellers @ 7.22 ref - 7.33 ref

1 seller @ 7.66 ref

1 seller @ 7.88 ref

12 sellers @ 8 ref

Many others selling above 8 ref

Sellers below 7 ref

http://www.tf2outpost.com/trade/23586009 (6.66)

http://www.tf2outpost.com/trade/23616424 (~"squid mask thing" for 6.66 / young)

http://www.tf2outpost.com/trade/23619949 (5 ref / young)

http://www.tf2outpost.com/trade/23584991 (6.33)

http://www.tf2outpost.com/trade/23584999 (5.66)

Sellers @ 7 ref

http://www.tf2outpost.com/trade/23610244 (accepted offer of 7.33 ref)

http://www.tf2outpost.com/trade/23604613 (7.33)

http://www.tf2outpost.com/trade/23571855

http://www.tf2outpost.com/trade/23624817

http://www.tf2outpost.com/trade/23509320 (7.66 / unsold for 6 days)

http://www.tf2outpost.com/trade/23612518

http://www.tf2outpost.com/trade/23625482 (6-7 ref / young)

http://www.tf2outpost.com/trade/23466168 (1 week / selling many)

http://www.tf2outpost.com/trade/23623519 (young / low-end bp.tf price)

http://www.tf2outpost.com/trade/23623262 (7.66 / young)

http://www.tf2outpost.com/trade/23620418 (young / poorly bumped)

http://www.tf2outpost.com/trade/23517656 (6 days)

http://www.tf2outpost.com/trade/23590070 (no bump)

Sellers @ 8 ref

http://www.tf2outpost.com/trade/23614090 (young / 8.33 ref)

http://www.tf2outpost.com/trade/23611195

http://www.tf2outpost.com/trade/23626902

http://www.tf2outpost.com/trade/23622642 (young no bump)

http://www.tf2outpost.com/trade/23621176

http://www.tf2outpost.com/trade/23592542 (8.33)

http://www.tf2outpost.com/trade/23613637 (8.44)

http://www.tf2outpost.com/trade/23610139 (young)

http://www.tf2outpost.com/trade/23592505 (no bump)

http://www.tf2outpost.com/trade/23566049 (8 ref? / no bump)

Unsolds @ 1 key

http://www.tf2outpost.com/trade/23498721 (1 week old / someone sent an offer but it is still in his inv)

http://www.tf2outpost.com/trade/23572280

http://www.tf2outpost.com/trade/23493408 (got offered an strange shotgun, but the buyer found someone else selling for an cheaper price)

http://www.tf2outpost.com/trade/23570797

http://www.tf2outpost.com/trade/23554678 (4 days)

http://www.tf2outpost.com/trade/23560444

http://www.tf2outpost.com/trade/23557202

http://www.tf2outpost.com/trade/23460185 (1 week)

http://www.tf2outpost.com/trade/23506570 (6 days)

http://www.tf2outpost.com/trade/23526073 (5 days / poorly bumped)

http://www.tf2outpost.com/trade/23507357 (6 days / poorly bumped)

Many others poorly bumped or with any bump at all, that was all I got, hope it's enough :P