Congrats.
As well as the power-rocker (they do make clockwork swing-beasts, remembers 'em from idjit-nephew infant days) you're gonna need a wider and more robust lowboy/flatbed, and semi to pull it... As for the crane, um... save your $ and stick with human-power.
But speaking as one who's operated R/C's with micro-humans around, watch out when they get to the grabby-paw stage. Any grabbable parts get grabbed, like antennas and such, so watch out. Even as a crawler, unless you can evac the RC fast enough, you CAN get Godzilla'd/Cloverfield'd/whatever.
Lesse, last 1/4 lunar cycle, end of the Dragon year (changes Feb 10 to Snake) and a Capricorn (Jan 15 to Feb 14) and thats all I can do as an amateur.
PS: You dinna say... it a boy or a girl crawler?
PPS: and safety-proofing an apartment for a CAT is bad enough, OY!
