This is no place for big asks so... * The small set of structural pieces, tanks and engines. But KSP is having the classic problem of an extremely successful game still in dev: the develop is lagging behind the mod comunity (in a way I never seen) Im not asking to integrate the mods the modes that revamp the whole gameplay (as aerodinamics, or remotetech, lifesuport, deadly reentry, ...). But, in particular, working with an ensambled ship is the hell witout an actions mod.