@
coolguymihai where (city or area) do you live? You may have a local bike shop or CL market that sells used parts near or near-enough by. Stem-mounted shifters are super cheap--like $5 please-take-them cheap as many want STI/Ergo brifters or (to a lesser extent) downtube shifters. You should have a bevy of choices, and Ebay has a bunch as well.
Mid-post edit:
Looks like this guy has a blue 1981 Le Tour. The catalogs mislead! He even confirmed it with the build/serial date stamped in the head badge, indicating it as an early-year 1981 example. I'd say that's sufficient evidence to corroborate your recollection of your old Le Tour being a 1981. Handsome bikes.
This seller has a 25" but the price is too much, even if it was mint, and didn't have ape hanger bars (ugh). He does--and hopefully it's accurate enough--state frame angles (likely self-measured). 72.5° for both head tube and seat tube.