Today I was shopping on FB Marketplace and saw an add for 2 Trek bikes. A 720 and a 7000. I asked the seller if they were for sale individually. They were so I drove over with an interest in the 720. It was left outside in an open sided covering with minor surface rust. All of the cables and chain was rusted. We agreed on $20. The seller said I'll give you both for $40. I told him the 7000 had a bent front rim and I really did not want it. So I just said 2 for $30 and he said yes. I am trying to find information on the 720. The color scheme is purple to black with white decals. Which according to vintagetrek.com make the bike a 1993. The bike was made in Taiwan. Serial # T8CB59694 with a second # just under the prior # BI0407. CroMoly frame and fork. RD is Altus A20 Crank Altus A20 Brakes Altus C10. Shifters Sram Gripshift MRX Comp. Tires Bontrager Select Invert B 700x35. My questions are (1) is it a 1993 according to the serial # and (2) are the components original? This is all new to me so I need your help. Thank you in advance.