newbie glenn here again, i was given a bachmann ho trolley car, and i have extra on30  straight ez-track. what else would i need to get the reversing trolley to function ? thank you glenn

several questions from this newbie, 1- can i run ho engines on my on30 bachmann ez track, 2-i have several tight 18 inch circles , will a 2-8-0 engine handle curves like a 2-6-0 or will the extra axle maybe be tight , thank you glenn