First of all tell me where your "curb" is, and then put the Eden cabinet there.
Now, is the Sunn cab, in fact, a 2000S cab? If it is, I'd suggest that you start by signing up for the "Charles Atlas Moves the Sunn" course. Make sure that you also have a suitable vehicle to move said "Earth Shaker" from place to place. A 2000S doesn't simply slide onto the back seat of your Pinto.
Bottom Line......If it were me, I'd grab the Sunn and Keep the Eden.
Let us know how ya' make out.........and where did you say that curb was?
RB