I've noted a couple of inqueries on modeling websites about the alternatives for creating an F9F-8T (TF-9J) from a single-seat F9F-8. This isn't as easy as it looks at first glance. The two-seat Cougar trainer had a new forward fuselage beginning at fuselage station 172 (pretty close to the aft end of the speed brake well) as well as a new canopy and a fairing aft of the canopy. However, neither the speed brakes nor the nose gear well was moved forward relative to the mid-fuselage so the wheel base remained the same. The trainer retained two of the four cannons. (For more see http://www.ginterbooks.com/NAVAL/NF68.htm)
The overall length increase (not counting the barrier deflector on the F9F-8 or the refueling probe on either the -8 or the -8T) was about 34 inches.
This provides a rough idea of the changes and what would be required if a conversion was attempted using a single F9F-8 fuselage:
The Miniwing kit is 1/144th scale. It is reviewed Here
Until early 2016, there was no 1/72nd scale F9F-8T kit per se. There were at least four different conversions that been issued that can could be used with the Hasegawa Cougar: Airmodel AM-049 (vacuform fuselage and canopy), Esoteric/Body Job BJ-4 (resin fuselage, vacuform canopy, and decals), RVHP 7239 (resin and ?), and Falcon Triple Conversion III (vacuform fuselage and canopy) that also provides conversions for the F-106B and the Mirage IIID. The Airmodel conversion is pretty crude and probably a last resort. The Esoteric one is long out of production. The RVHP conversion is still available but might be hard to find. The Falcon conversion is still available from their retailer in New Zealand and from Hannants.
Paul Boyer converted a Hasegawa F9F-8 with the forward two thirds of the Esoteric fuselage. The Hasegawa parts are white and the Esoteric fuselage, resin colored.
"The conversion kit decals were nearly worthless -- no stenciling and only basic markings for a trainer and a Blue Angel bird. I found this one in the Ginter book on the F9F-8T/TF-9J. The blue sash on the nose is paint and it matches the blue stripe decals cut from solid color sheet for the tail. Note the blue stripes leave a white outline on the "NAVY" on the rear fuselage. No way I was going to cut that pattern into the decal stripes, so I applied each letter of "NAVY" onto white solid-color decal, let them dry, then carefully carved the letters out of the white sheet with white outlines. The rest of the letters and numbers came from various lettering sheets by Microscale and Scale-Master. The intake warning chevrons came from a Microscale Panther sheet provided by member John Huggins. Thanks, John!"
Will Alcott used the Falcon conversion to create a USMC Fast FAC. In this case, the Hasegawa kit is blue plastic, the Falcon vacuform is white, and the primer is gray:
Fortunately, Sword has now issued a 1/72 scale injection molded kit, SW 72093.
Collect Aire produced a 1/48th kit in resin which is reviewed Here
(It is out of production but might be found on eBay from time to time)
In mid 2014, Kitty Hawk released a 1/48th injection molded kit of the F9F-8T/TF-9J. See here for more details: http://tailspintopics.blogspot.com/2014/06/grumman-f9f-8ttf-9j.html
Fisher Models sells a 1/32 F9F-8T kit: See it Here on page 2.
The F9F-8T was originally delivered with Grumman-furnished ejection seats. However, in 1956 BuAer contracted with Grumman to install the new Mk 4 M-B seat in an F9F-8T for a demonstration. Flying Officer Sidney Hughes, RAF, successfully ejected from it at Patuxent River in August 1957 while on the runway at 120 kts.
The original Grumman seat is on the right and the Martin Baker seat used for the test is on the left (some of the details changed over time like the harness; the original RAF harness is shown).
Grumman seat installed