You just need to hire C++ programmer, exposing is easy task or else feature is being weird have different root class and need creation of editor like Slate. Considering lot of them operate hourly you could get somebody to expose few thigns in one go
https://forums.unrealengine.com/community/got-skills-looking-for-talent/looking-for-work
And don’t be scared C++, exposing is something you can start with. All you need to do is make UBlueprintFunctionLibrary with static functions that call functions. Just remember that API in blueprints are almost exact same as C++, i mean most nodes are direct bindings from C++