Dido what everyone else said.
You should have the Russian minor in Leningrad and prob Ukraine as well a couple turns after you invade Russia, so there really is no need to spend the IPCs up there for redundancy.
You can buy a second German transport for 7 IPCs (cheaper) and move 2 more units (4 tot) through the Baltic and threaten all Russian territories that boarders the Baltic Sea (or even the White Sea sz 127 if you venture out). Besides threatening multiple territories, transports can be used to reinforce or counter attack as well. A 3rd German transport in the water (with some added fleet) will keep the London in a defensive position in the early/mid game too.
Finally as others pointed out a German IC in Scandinavia will quickly draw the attention of the USA. Norway/Finland is already a target, you really don’t want to magnify it IMO.