The Hammers have been linked with a host of top strikers this summer but have already missed out on Dutch star Vincent Janssen after he opted to join Spurs as well as Lyon's Alexandre Lacazette despite having a record £31 million bid accepted.
Slaven Bilic also failed with a bid to lure Belgian star Michy Batshuayi who instead joined London rivals Chelsea.
West Ham manager Slaven Bilic
Bacca situation changing like the wind
The situation seemingly changes from one day to the next with some reports claiming Bacca does not want to come to the Premier League and others suggesting he is ready to change his mind and move to East London.
Hammers fans are waiting with baited breath to see if they can finally snare the 20-goal a season striker the club so badly needs.
West Ham United co-owner David Sullivan watches from the stands with a younger Dave (left) and Jack
Co-owner's son drops Twitter hint
And Dave Sullivan, the eldest son of Hammers co-owner David, has teased that the Milan ace will be next in a post on Twitter.
After announcing the £20.5 million signing of Andre Ayew from Swansea City, Sullivan added: "Now Bacca to the drawing board to decide who we sign next."
@DaveSulley now Bacca to the drawing board to decide who we sign next— DAVE SULLIVAN JNR (@DaveSulley) August 8, 2016
With the big move to the 60,000 seater Olympic Stadium on the horizon in the coming month Gold and his fellow co-owner David Sullivan have pledged to make a marquee striker signing and are willing to spend as much as £30 million on that player.
Striker could help Hammers challenge for Champions League
Should the Hammers pull off the marquee striker signing they have been searching for it will give the club's fans renewed hope of a Champions League push this season.
It was only their profligacy which stopped West Ham making it into the Champions League last season as they finished just four points behind fourth-placed Manchester City with a total of 14 draws, many of which they should and could have won.
Even in many of their eight defeats the Hammers had plenty of chances to secure the win, the 2-1 defeat away at Stoke on the last day of the season offering the perfect example.
And not forgetting the Hammers are also in the Europa League - a competition Bacca's goals helped former club Sevilla win twice in a row - which also offers the prospect of Champions League qualification.