Ok, just downloaded both.. part 1 & 2... into the same folder during download. highlighted both parts, then right clicked & selected unzip here... & the end result... an unzipped mod... with NO errors reported.
Hope this helps.
Side note... on downloading part 1... & part 2... I made sure that I got both, from the same source. There is 2 sources... 1st is MediaFire the other, is from Mega. Not that it should matter... but... why take a chance, eh... no need making life more difficult than it is...
M. M.