Road Connection between Great Poland v1.3.0 and RusMap v1.8 [1.30.x]

Mod connects two maps of Great Poland v1.3.0 with RusMap 1.8
Game version: 1.30.?
The arrangement in the mod manager from top to down looks so:
-GP_1.3.0 ___ RP_1.8_Road_Connection
-Great Poland v 1.3.0 Map
-Great Poland v 1.3.0 Model
-RusMap Map Package
-RusMap Model 2 Package
-RusMap Model Package
-RusMapDef Package