Another, cheaper version of the fourth cascade return. The cloth turns the dillo more than stopping him, redirecting him downwards.
This lifts the cloth, which is pulled taught against the rope and inertia of the dillo to flick him back under the fourth cascade, and across to the fifth (and portal).
So, completed with no breaks and $96 to spare.
Also, the economical breaker version is here too. $128 cash left, but with a deliberate break of the structure.
Two bars are used to prestress one of the plates. The dillo landing doesn't break the plate immediately, as it gets compressed by the landing. But, the structure flexes under the dillo impact, and the rebound causes the extra bit of tension needed for the plate to break, just in time for the dillo to fall through the gap into the portal.
The first bar/cloth return was adjusted until the dillo landed at the perfect place. Almost directly on the corner, with just enough to fall outwards. Too little, he'd roll along the fourth cascade. Too much, he'd bounce clean over the new opening and fall to his doom. It takes a "goldilocks" solution of just the right amount of everything.