The LX-50 Titan
was made by piptech industries when they needed more to be assembled in orbit at a time, as the saying goes If the transfer vehicle doesn’t work, add more boosters to it in orbit
so that they could attach bigger tanks to transfer vehicles in orbit, however, you don’t need to do the same. The Titan is capable of lifting up to 220 tons to orbit, to accommodate your needs for big things going to orbit.