best thing to do is just try products or offer up some samples of products here on autopia and maybe someone will trade you and you get to try out some new product!. you can also buy samples from autogeek(i dont know if autopia store has samples) in this game theres thousands of products and everyone likes a certain brand or a combo of brands. theres plenty of great AIO products like xmt360,klasse AIO,meguiars paint reconditioning creme D151. with an aio product it just depends what your looking for as in chemical cleaning of the paint or wanting to clean paint and remove some defects also. alot love the D151 but some paints you might need to follow up with a swirl removing polish if its really soft paint. and as far as a LSP goes what kind of look to your paint do you like? what kind of durability are you looking for?. have you thought about a nanocoating such as system-X,opti-coat,c-quartz ect?.and i would not apply a LSP to all surfaces on the exterior. I only apply it to painted,plastic chrome,polished aluminum,and glass. i then use a dedicated trim protectant for rubber,plastic,vinyl as the good protectants will get into the plastic itself providing good protective layer.however, more recently they have some trim sealants which last a very long time and leave the stock sheen to them i think C4 is the name of one. thats just my opinion of keeping all lsp's off trim. i know some trim takes well to using a compound however! but that's another topic! good luck finding a replacement to the zaino, im sure you will find something great to fit your needs on the autopia store!. oh yeah and welcome to the forums!