front strut lenght comparison problems

[fax0815]

Hi,
my AE got a coilover suspension with koni yellow struts. My problem one of them is totally fu****, there is oil everywere and I can´t pull it out to measure total length.
Luckily someone on here could sell me 2nd hand Koni to fix it temporary. (Going to buy Driftworks CS2´s as soon as its back in stock around 6-7weeks)

Since I didn´t build the suspension, I´d like to find out what was done.
I meassured 345mm total lenght of the strut body (yellow part)
and my housing is around 425mm long (bottom to top with no locking nut)

Does anybody know it that´s stock or short-stroke?
Strut housing was half filled with oil so I forgot to check if there is a spacer at the bottom.

The strut I could get does have a a strut body lenght of 400mm, wich is quiet a bit more than the 345mm I measured.
I´m not sure it will fit my housing...
So I really need your help.