XA Coupe Rebuild x 2

[XA Coupe 666]

Ok, need advice again.

Finally come to my senses & will rebuild the gt optioned XA back to original.

A couple of things I'm stuck on.

Even though she is just a 500 she was optioned with the full GT front, toploader, 302, GT dash (7 grand tacho) & vinyl roof.

Here's the thing.

Hate batteries in the engine bay, nothing worse than looking at a piece of artwork (Cleveland V8) than to have this ugly messy crap next to it.

Can I put it in the boot and stay true to the resto?

And I really hate vinyl rooves. No offence to those who do.

Again, if I dont put it back will this denigrate the rebuild.

The other is a fairmont with a factory sunroof but was originally a 6 so I can have some fun with it.

Stuck between going whole hog on a 393 cleveland with CHI heads
OR
a late model EFI turbo/supercharged 6 or 8.

Your thoughts please.