A local YouTube historian, "A walk with Phil" has produced a video of the site of the old stadium. He has also walked what would have been the old track. Phil, by his own admission, only went to Dudley Wood once but produces many videos of the black country, referencing what used to be on the sites in days gone by.
I've enclosed a link, hopefully some Heathens fans and speedway fans in general, might find it worth a look.