[IMLost]

Here is a thought. What do you need to upgrade and why? Why do you think you need to upgrade and what for.
It's like knock off wheels do you want then or need them? Does everything work or function properly? Do you plan on driving it or showing it? All of those simple things will answer your questions for you.
Do you want a trophy wife or a good one?
THen drive it some more, that's what there built for.