Right now I have both, of you get textile buy grotex it will keep you dry, I need to get some gortex trousers, as the one I have arent but my jackect is I can tell the differnce!
I gonna swap my 2-piece for one piece, then I have an all in one water proof HG tribale oversuit that keeps me dry in my leathers.
Buy a good lid, you notice the differnce I have 2 lids a cheap shark one which I wore yesterday wearing it after my arai I can tell its cheap s*** spend money on that, you will need a back protector, jackect and trousers oh gloves.
I have waterproof boots as well, they are Alpinestar SMX-4 well worth the money. I wear summer gloves with heated grips, I think saftey is far important.
Put this way I wearing my leathers, with 3 layers underneath, a fleece over the top, then the over suit I was very warm, in fact on the M25 I was sweating
at 80 mph+
You need a budget for your gear, like the most u want to spend, but I would plan to spend something ?800, I have spent far more than this. But the right gear can save your life, so I wouldn't be tight. If it means no beer, no going out for a month then I would. Up to you.