In preparation for an upcoming historical project, I decided to have a look around the exchanges and see what sort of early modern (~1500-1800), pre-industrial plugins I could find. Since there wasn't an existing list for such plguins, I thought I'd start one and let better searches than me contribute to it. Here are the few that I've found so far (all on the LEX):
Commercial
Small Timber Frame Shops by tag_one - Download link (http://sc4devotion.com/csxlex/lex_filedesc.php?lotGET=2366)
The Green River Bar by tag_one - Download link (http://sc4devotion.com/csxlex/lex_filedesc.php?lotGET=2176)
JENX Re-lotted Vol2 by tag_one - Download link (http://sc4devotion.com/csxlex/lex_filedesc.php?lotGET=1311)
Residential
BLS Housing Tudor Style by BarbyW - Download link (http://sc4devotion.com/csxlex/lex_filedesc.php?lotGET=1454)
JENX Re-lotted Vol1 by tag_one - Download link (http://sc4devotion.com/csxlex/lex_filedesc.php?lotGET=1310)
Small timber frame houses by tag_one - Download link (http://sc4devotion.com/csxlex/lex_filedesc.php?lotGET=2174)
Agriculture
BLS Willow Tree Farm by BarbyW - Download link (http://sc4devotion.com/csxlex/lex_filedesc.php?lotGET=1288)
BLS D66 New Farms by BarbyW - Download link (http://sc4devotion.com/csxlex/lex_filedesc.php?lotGET=935)
Rewards
Saint Barbara Church by tag_one - Download link (http://sc4devotion.com/csxlex/lex_filedesc.php?lotGET=2034)
CAL Willowtree Cottage by callagrafx - Download link (http://sc4devotion.com/csxlex/lex_filedesc.php?lotGET=734)
One plugin I'd really like to find that'd fit in here is the narrow dirt road mod seen in such MDs as kwakelaar's Andau (http://sc4devotion.com/forums/index.php?topic=8812.msg286424#msg286424).
I look forward to seeing what other early modern plugins you all can find!