You have dismissed just about all of the options, other than ficus. Ficus may do OK, but I have a feeling it isn't going to satisfy what you're looking for. It will be leggy and won't end up looking like what you seem to be after. If the jade plant died, other species like ficus aren't going to do well either.
Another way to go would be an artificial tree--no care needs. No need to get dispensation for grow lights, etc. from your employer. Not being critical in suggesting this, but it's something to consider as an option. Less hassle and still shows your interest without making it an imposition on management at your new job.
There are artificial options that can run from realistic to "arty":
https://kamimotto.jp/SHOP/186478/139556/list.html
There are many, many more if you look around online...