Rather than waste this tech, strap 2 Falcon Heavys to it and park it in a useful Mars orbit in the next launch window Sept. 2022. To be pointed towards Mars.
Perhaps fit it atop a cargo shot. Same for the ISS -- it's dying, so stuff it full of cargo and shoot it to Mars while we are lifting the ISS replacement to orbit.
This is one deep vein I share with Musk -- stop wasting goddamn time and utilize every possible hold that has already been lifted to orbit and point it to Big Red.
Rather than waste this tech, strap 2 Falcon Heavys
—
There is no way to get to Hubble’s orbit with a manned vehicle to strap on anything, even if such a thing would work in the first place. The Shuttle made it and that was by the skin of its teeth. After the repair mission NASA said, I believe, that any further similar mission was too risky (human lives), too dangerous, and too expensive so would not happen again. We have no human rated vehicle that could lift any one there, nor lift all the assembly equipment needed. It is not as simple as your words imply.
ISS is 250 miles above the surface, Hubble is 340 miles. Not far, but a long way in terms of payloads.
Re: Big Red
I assume you mean Mars?
What, exactly, is so urgent about getting humans to Mars?
I enthusiastically support basic scientific research by robots and satellites, and basic research on space travel.
But humans on Mars (or the Moon, or a new ISS) will spend most of their working hours on repairs, maintenance, custodial duties, and personal health.
It is going to take centuries of R&D before human beings can do anything productive in space, besides tourism and thrill rides.