In Collecting

Alright I got made this offer:
Sega Master System
Hook ups, POWer cord is broken but I can use a Genesis POWer cord right?
2 controllers
And the light Gun
Plus four Games, I can remember one of them was Rambo and bladerunner,
All for $20.00CDN should I take this deal? Also would Genesis Hook ups work on a Master System Luke told me about something like this once but I forgot.

Genesis 1 cables will work on a SMS, Genesis 2 cables were different.

20$ CDN seems cheap enough to me. I'd get it.

Twenty dog-year dollars for a Master System, games, and a light gun? Take it.

As far as I know, the NES AC adaptor works on a Master System. At least, when my NES' AC adaptor got fried, I used the Master System's in stead. I don't see how it could go one way and not the other.