German pre ww2 boat in Sweden ..help......

[neo]

Last year i bought an 7.5m long aluminum boat . The last owner say that he bought it from a fishier on south east of sweden , and that he got it as payment for helping 12 people escaping from the Russian army taking over Germany and the baltic in 1945.
The only information i have about the boat is that it had a side valve engine, and that the refugee say that they are from the baltic countries . But there was saying that so that they did not to be sent back to the Russians.. is there anyone that knows anything about this boat pleas help me.

Neo Andersson Sweden