Jojoe, Adeniums are not quite as fragile as you seem to believe. I've many time cut a branch off rested it a few days;dipped it in root hormone and just stuck them in dirt, they've all survived until I uprooted them because I started getting into growing from see;(Darn you Wilfred
) My own thoughts are that no matter how much you cut out, the plant will probably survive, maybe just missing a caudex,but if that happens you can still grow it and hand pollinate when it flowers, sow the seeds and your good to go!