This is by no means exact science, but it is certainly possibe. Junkyard is somewhat repeatble, but cottage feels super random at the moment. Maybe there is a better setup for clipping there. Buggy run might be feasible with these.

Junkyard:

Cottage:

That is awesome! That makes a Buggy run actually feasible. I am going to try these tonight as well.

Took a fair amount of resets, but it's doable: