Jose,
have just discovered this site, but only after recently scrapping a Dynatech Mission frame that had a cracked head tube casting!
It was my pride an joy when I brought it new in 1990, and took me up (and down) proper mountains without a hint of suspension!
What i do have is the complete Deore DX groupset (excluding cranks), in good condition and full working order, includings STI brake levers & shifters, Front & rear mechs, front and rear canti brakes with bolts, springs and straddle wires. Was going to put them on ebay, probably next week. I also have an original Rigida Laser 400 front wheel with DX hub in good condition.
I'm also sure I have the original Raliegh glossy brochure from 1990 salted away somewhere.
If your interested let me know and I will notify you of the ebay date - I would be open to offers but have no clue what it is worth.
Regards
Chris