Buy new mechanisms for lifts (what is the price in Lithuania? about 50 lit?)
It depends where you get, but electronic lifters costs from 20lt to 40lt.
And what about tresers, can you find some in Kaliningrad? And if you can so what price? 
This is good
Online is the guys who sell them at good prices?
in Kaliningrad, an optical non-existent. a very rare thing
Well, the best known seller in this forum is audzius, he have a lot of parts, but if you want the cheapest you should look at advertisements in page such as
www.autogidas.lt Hm, in Lithuania we can find some tresers, 1.5 year ago I bought them for 200lt and 4 months ago I bought perfect condition tresers for 300lt.
