Hi I have some info that might be useful for your muddy fox, it is from a 1990-91 Mountain Biker Buyers Guide - details listed as follows:
MUDDY FOX Prestige Seeker
Frame Spec: Tange Prestige T'Out
Headset/Forks: Tange Sealed/Cro-mo unicrown
Gears: Suntour XCD Accuplus X Press 13 - 30
Chainset/Pedals: Suntour XCD Power Ring 24-36-46/Suntour XCD
Hubs/Rims: Sansin Q/R / Araya Rx-7
Tyres: MF Griptrax 2"
Brakes: Suntour XCD Cantis SE
Handle Bars: MF Dural/Cro-mo T-Bone
Saddle: Avocet
Frame Size: 16, 18, 20, 22"
Colours: Black/Silver Glitter
Comments: Mono Stay
There is also a small balck and white picture.
I'll scan the page at work tomorrow and post it on this thread for you.
Cheers