Thanks for the update @Rob S, looking forward to seeing this thread grow. With 99% of prados being used as family cars there is not much info on mods that you can find for dune bashing unlike the FJs, Jeeps and Xterras.
I would say the bashplate is a good investment even at newbie level, if after the first couple of drives you feel that off-roading is your calling then get one immediately. As many would have noticed most of the terrains are quite bumpy after the recent rains and especially during the early morning drives when the sand is still quite hard and compact, so you never know when the bashplate might come handy to save your day. You can get 8-10mm Aluminum ones for a reasonable 1100-1200 Dhs from quite a few places.
I havent yet done the bumper trim but after my first few fewbie drives feel that thats something to look into going forward. Have had the Dunlop AT20 before i even started this new hobby, so far they are pretty good. But i guess the next tyre change will be to Geolanders.