You will need:

1- Bazooka Brothers 180 drum adapter(for the A&D Mfg plate)
17- Bazooka Brothers .22 LR dummy rounds (come with the kit)
1- S&W 10 round mag
1- E&L Mfg American 180 drum (they come in 165, 220 and 275 rounds)
1- E&L Mfg American 180 drum winder
1- .125 x .5 x8" SS strap
2- .125 tension pins

Sources:

Bazooka Brothers Mfg. new $199.00
I got 2 used for &60.00
E&L Manufacturing, Inc. - American 180 Parts and Accessories - Parts List
drums new are $75.00 -165, %100.00- 220, $125.00-275

I got them used around the net for $60-up but for this one I used his discount and got a 220 drum with shipping for $95.00

E&L Mfg. has a %15 discount if you use a USPS MO

Pick your favorite internet dealer for the mags and local hardware store for the SS and pins.