Is your MGTD a kit or the real thing?
Moss Motors is a good source for most of these parts and rechroming is definitely an option.
As far as your top and side curtains go, you can have “cloth” style units made by any good, local Auto Top/Upholester. DO NOT THROW AWAY THE OLD TOP AND SIDE CURTAINS…the fabricator will use them as patterns to build the new ones. I had a kit car top and side curtains made in “Stayfast” fabric from the old, moldy and worn ones for just over $1,000 at a reputable local business. The cheapie vinyl stuff is OK, but does not last or look as good.