My Mrs is 5'4" and she could sit on the seat with feet flat on the floor (26" rims with 1.75tyres, if you need it lower I'd build it with a 24" rear wheel and put a nice fat boot on it, 2.5 should fit easy, you may even get a 24X3.0 dyno fireball at a squeeze). the chain guard comes off with 2 bolts, the rear brake cable routes through the frame top tube and from memory due to the forward position of the bottom bracket there are minor toe overlap issues unless you pedal on tip toes
My Mrs is 5'4" and she could sit on the seat with feet flat on the floor (26" rims with 1.75tyres, if you need it lower I'd build it with a 24" rear wheel and put a nice fat boot on it, 2.5 should fit easy, you may even get a 24X3.0 dyno fireball at a squeeze). the chain guard comes off with 2 bolts, the rear brake cable routes through the frame top tube and from memory due to the forward position of the bottom bracket there are minor toe overlap issues unless you pedal on tip toes