Greetings

So after installing bigger wheels my car seems like a cross polo. Anyhow i want to lower it by about 2-3cm.
Since i dont want the ride to become much harder and also possibly want to revert changes before winter without problems i am thinking coilovers.

anyone can link me something on ebay? not so expensive and reliable if possible
Found a lot of stuff on the internet but got lost eventually. So want opinions from people who are using it -)

ty

[edit] my polo is 1.4i 2010 5d