Mr de la Haye said he hoped the committee could begin its work later this year.
Mr de la Haye said he hoped to select a chairman by the end of May.
Londoner Haye also predicted that Klitschko would become a forgotten man after he "knocked him out".
"He's spent so many years fighting B-level opponents, he's become a B-level champion, " said Haye.
Still, Boente said he was confident the Wladimir Klitschko-Haye fight will eventually be made.
Haye said he was gloomy about the possibility of fighting Wladimir Klitschko in the future.
That is when you will see whether Haye can do it at that level.
Haye, who was comprehensively defeated by Vitali's brother Wladimir in July last year, also attended.
Haye's manager Adam Booth tried to separate the two and suffered a cut to his head.
"I got the reaction I wanted, " said Haye, who has 22 wins from 23 fights.
Adam Booth, Haye's trainer and manager, indicated he would not fight beyond October 2011.
Promoter Frank Warren criticised Harrison and suggested he should not have been allowed to face Haye.
"I would be mad not to take that fight and knock him out, " said Haye.
Haye had been scheduled to fight Wladimir last summer before being scuppered by a back injury.
Either one is expected to fight Haye later this year if Haye defeats John Ruiz in April.
Speaking later during the press conference, 32-year-old Klitschko repeated his promise to make Haye regret his words.
"Anyone who knows anything about boxing can clearly see I won that fight pretty comfortably, " said Haye.
Boente said Haye could also have taken an interim fight and then faced Klitschko on 2 July.
Leading American promoter Richard Schaefer insists Haye is now the most marketable world champion in the sport.
However, any meeting between Klitschko and Haye would only happen after they fulfil their contractual obligations first.
The news comes days after it emerged Haye was back in talks over a 2 July unification showdown.
Harrison, 38, added that he is not interested in fighting WBA heavyweight champion and fellow Briton David Haye.
Haye, who defeated giant Russian Nikolay Valuev in November, first faces a mandatory defence against American John Ruiz.
Haye is determined to press on with his plans to fight Klitschko and shake up the heavyweight division.
Haye, 29, said that trainer and manager Adam Booth would enter negotiations with the Ukrainians later this week.
The project also includes extra-care homes for the elderly on the former British Trimmings site at Ball Haye Green.
"No disrespect to David Haye, but no-one is talking about David Haye, " said Harrison, an Olympic champion in 2000.
Mrs De La Haye's mother, Tamara Jaciubek, said nothing would ever be the same without her daughter and granddaughter.
However Chisora insists he will not step aside for Haye after Wladimir Klitschko's withdrawal from their planned title bout.
And Costello added that the cancellation could be good news for people wanting to see Haye fight a Klitschko.
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