I'd let it pass...
if it's a stolen shopping trolley you (unlikely will, but still) can get in trouble buying it.
And it's terribly tall and comparatively short which makes the profile look awkward imho
especially if your intention is to mount it to a go kart.
I'd rather find a beat up go kart body and fix that instead..
can't be more expensive than 50 bucks either.
(given that the last decent one I saw was sold on ebay for less than 100)
And while you can make a short chassis that fits the overall dimensions.
And that thing really looks funny (for a few seconds)
it's awkward proportions get old within days IYAM...
completely your choice, but I think you will eventually regret buying it
and not finding something like the toddler bed carbody or a powerwheels or
-which I think likely gives you the best handling kart- a go kart body instead.
'sid