If you are determined to DIY and are a novice at vinyl application you really can’t go wrong with the product from Powerful UK. Theirs is a wet application and there’s no such thing as too much soapy water (three drops of soap per spray bottle). A helper (holder) and the fold-over method aka LR is also highly recommended.
IMHO Their longer version is the more estheticly pleasing EXCEPT they could have made the cut-out deeper to put the numbers up on the flat of the hood like the genuine part.