The duo have been out of action since the 34-22 win over Leigh at the Shay in early July, Larder with a fractured jaw and Wilson with a broken arm.
And the original prognosis was that they would be sidelined for eight weeks.
"Both have responded really well to their injuries," said Fax chief executive Graham Clay.
"The plan was always to try to get them back in time for the play-offs."
Clay is doubly keen to see the club enjoy play-off success with financial and possible Super League rewards up for grabs.
"Not only is there the financial incentive of a £100,000 prize for winning the Grand Final," said Clay. "But if we can win the title in the next three years it ticks another box for a further Super League licence application.
"It counts as another plus point."

The absence of promotion has not affected attendances in the Co-operative National League One, which this season enjoyed its best support for 11 years.
The average crowd at the end of the regular season was 2,205, the highest outside Super League since 1997 and almost 10 per cent up on last year's figure of 2,074, which was also a record.
RFL chief executive Nigel Wood said: "The League continues to develop rapidly in terms of playing standards and all-round excitement and this can only continue as the play-offs approach."
The play-offs culminate in the Grand Final at Warrington on September 28.

National Conference
Premier Division: Leigh East 18 Leigh Miners Rangers 19, Oulton Raiders 14 Siddal 16, Skirlaugh 20 West Hull 18, Thornhill Trojans 24 York Acorn 50, Hull Dockers 34 East Hull 18, Thatto Heath Crusaders 32 Rochdale Mayfield 10, Wigan St Patricks 6 Wigan St Judes 28.