I 1st began rendezvous with pair a pair of jeans(farb) and a cotton shirt.
For shoes i just use (and still use) a black pair of combat boots, they are out of place, but look fine if your pant legs cover most of them. Make sure and remember a belt.
Rendezvous takes place in the time frame of 1763-1850 approx. so no Civil war stuff.(like kepis)
Beginners should also make sure and have a period looking knife, kitchen knives with wooden handles work well. Also make sure and have a blanket-a blanket or sleeping bag is a MUST if you plan on staying overnight. (I should know:-)