Components needed:

 1 Metal box
 1 DC socket, male
 1 PCB
 2 switches/jumpers

 CONN1 = Mini DB15P socket, female
 CONN2,
 CONN3 = RCA socket. female
 DL1 = 300ns Philips delay line. Motorola asks for a 400ns, and "Radio Plans" magazine uses a 470ns delay line in their schematic. I guess you should use whatever you get...
 Q1,
 Q2,
 Q3 = BC547
 U1 = Motorola MC1377P
 U2 = 7805, voltage regulator
 VC1 = 25pF, variable capacitor. Doesn't need to be exactly this value.
 VR1 = 47K, variable resistor
 X1 = 4.43Mhz crystal (PAL), 3.58Mhz (NTSC)
 XFMRI1 = Chroma bandpass transformer

 R1,
 R2,
 R7 = 1.8K ohm
 R3 =  2.7K ohm
 R4,
 R5,
 R6 = 47 ohm
 R8,
 R9,
 R10,
 R13,
 R16 = 75 ohm
 R11 = 33K ohm
 R12 = 220 ohm
 R14 = 3.3K ohm
 R15,
 R17 = 1K ohm
 R18 = 16K ohm
 R19 = 33 ohm
 R20 = 8.2K ohm
 R21 = 6.8K ohm

 C1,
 C2 = 10uF, 16V
 C3,
 C12,
 C13,
 C14 = 100nF
 C4,
 C5,
 C6 = 22uF
 C7,
 C17 = 1nF
 C8,
 C16 = 10nF
 C9,
 C10 = 180pF
 C11 = 12pF
 C15 = 33pF (PAL), 47pF (NTSC)
 C18 = 62pF (PAL), 100pF (NTSC)
 C19 = 1uF