For that amount of weight I'd make something like
this below. At 400 lbs I'm not going to bla, bla, bla, bla like I have when the total weight is over 1200 lbs.
After reading all the things needing unhooked before welding, I bolted two extra receivers on mine. With the tilting one below you would only need one more on the drivers side to help stabilize the load. I have since welded on my Dynasty successfully with only unhooking the batteries. I would add a winch to pull the cycle up. I would also lower the back of the MH but I'm 6'4".

OR
this for $478. Is there any way of running two metal arms out under the engine grill that would help to stabilize both sides so you do not have to add another receiver?

Even with adding one of
these a single receiver is going to move some.

I like
this for $3K as it's much like how I lift my car up to tow.
