I did some search and find this thread
http://www.ft86club.com/forums/showthread.php?t=22918
Here it is said that 16x6.5 ET53 can be bolted on directly. Not sure whether the addition 2mm offset going to change anything. The wheels I am looking at are just like these:
https://www.detroitwheelandtire.com/...845-sss-a.html
5x100, offset 55, 16x6.5, center bore 56.1