Got this late '80s custom Alves 531 fillet brazed f&f. It's big!! and in excellent condition, just a few scratches. Never ridden offroad
Been in a box in a garage for 20 + years. Takes a rear Rollercam brake.
I suspect its value is not in keeping with its rarity. Its size will limit its price too. I should imagine it is probably worth stashing this away for another 5 years by which time folk may have tired of the current staples and be better versed with the obscure UK built frames of the era. I would imagine £80-£120 and if the right person buys it they will not be quick to part with it.