Did a little investigating and found the Z80-MBC is still available as a unpopulated board. Ordered the board from https://www.ebay.com/itm/283494335966
Ordered most of the components from Jameco., found others on Amazon. The TO-92 2N2907 seemed to be a tricky article to find heris my parts list
C1, C2, C5, C6, C8, C9, C10, C12 | 8 | Capacitor, Disc, D3 P2.5, 0.1uF |
C3, C4 | 2 | Capacitor, Disc, D3 P2.5, 22pF |
C7, C11 | 2 | Capacitor, Radial, D6.3 L11.2 P2.5, 16V, 100uF |
D1 | 1 | LED 3MM, Red |
D11 | 1 | LED 3MM, Red |
D2 | 1 | LED 3MM, White |
D3 | 1 | LED 3MM, White |
D4 | 1 | LED 3MM, Green |
D5 | 1 | LED 3MM, Blue |
D6, D10 | 2 | Diode, D4, 1N4148 |
D7, D8, D9 | 3 | Diode, D4, 1N5817 |
J1 | 1 | Pin Header, 0.1", Vertical, Male, 1x4 |
J2 | 1 | Pin Header, 0.1", Vertical, Male, 1x8 |
J3 | 1 | Pin Header, 0.1", Vertical, Male, IDC Shrouded, 2x3 |
J4 | 1 | Header, JST B2B-XH-A, 2pos 2.50mm, Male |
J4 | 1 | Connector, JST XH, 2pos 2.50m, Female |
J5 | 1 | Pin Header, 0.1", Vertical, Female, 1x6 |
J6 | 1 | Pin Header, 0.1", Vertical, Female, 1x6 |
J7 | 1 | Pin Header, 0.1", Vertical, Male, 2x10 |
Q2, Q1 | 2 | Transistor, TO-92, 2N2907 |
R1, R7 | 2 | 680 ohm 1/4W 5% |
R10, R12 | 2 | 390 ohm 1/4W 5% |
R3, R4, R5, R8, R9, R11, R14, R15, R21 | 8 | 10k ohm 1/4W 5% |
R13 | 1 | 39 ohm 1/4W 5% |
R17, R18 | 2 | 4k7 ohm 1/4W 5% |
R19 | 1 | 1k2 ohm 1/4W 5% |
R2, R6, R16 | 3 | 1k ohm 1/4W 5% |
R20 | 1 | 330 ohm 1/4W 5% |
RN1, RN2 | 2 | Resistor Array SIP9 (1x8 & 1 common), 10k, 1/8w |
SW1 | 1 | Microswitch, 4-pin, momentary, 6x6x5mm |
SW2 | 1 | Microswitch, 4-pin, momentary, 6x6x5mm |
U1 | 1 | 74HC00, DIP-14 |
U2 | 1 | Z84C0008 (CMOS), DIP-40 |
U3 | 1 | ATMEGA32A-PU, DIP-40 |
U4 | 1 | TC551001-70, DIP-32 |
U5 | 1 | MCP23017, DIP-28 |
Y1 | 1 | Oscillator, 16MHz, HC-49V / HC-49S |
Socket | 1 | DIP-14 (machine or leaf), 0.300" |
Socket | 2 | DIP-40 (machine or leaf) 0.600" |
Socket | 1 | DIP-32 (machine or leaf) 0.600" |
Socket | 1 | DIP-28 (machine or leaf) 0.300" |
z.ICSP Adapter | 1 | 6-to-10 icsp adapter |
z.Module | 1 | RTC Module: DS3231 AT24C32 IIC RTC |
z.Module | 1 | SD Module: MicroSD card module SPI |