I have some block huggers...the cheapy SS ones on eBay. I know they aren't great and they will need some work to fit, but they have to be better then the cast iron manifolds and they are very compact. And they have 3" collectors, which I will extend for as far as I can until I am forced down to 2.5" for the rest of the exhaust.
Mine is LHD...I'm here in America.