opinion only, Ammaco i associate with BSO territory, pics are very blurry, but there seems to be some half decent parts.
The brake levers look like some shimano ones i have on an 85 rockhopper, thumb shifters look to be made of aluminium bodies, maybe suntour. pedals i dont think are suntour but a mid late 80s bear trap pedal might be worth a few quid,
rims have a label, might indicate they are something decent, reminds me a bit of an araya logo.
from the tyres it looks low miles, still has the pie dish and reflectors also which suggest again low miles.
front derailleur looks to have an aluminium clamp and not one made of pig iron
The stem maybe sr/ sakae, so from the grainy images it looks to have some quality parts
they all may be just a pastiche of decent parts available at the time, or maybe ammaco started out with decent intentions, but found its niche in the bso market
worth a punt at the current money i reckon for parts
all only opinion and i am frequently very very wrong