Stick with your classic mate, as Nige sais its proper mint and genuine. As much as its worth it, I doubt you will get what it deserves when or if you do go to sell it.
That said, the whole experience in a Hawk is going to generally be nicer and more grown up and the extra torque will make it feel quicker, so if you could get top money for yours it a good step up for little money... However its still just another scooby.
I'd take lucky up on his offer. I reckon you would be smitten with the whole package. Stop looking at figures and go test drive some cars including the other marques you mentioned to me
, unless your doing track work, quarter miles or have your right foot constantly on the carpet on public roads, paper BHP means nothing.