Help with vortec worth?

[Olden Days]

I recently bought a (wrecked) 98 GMC to get the motor tranny (for a future 68 project) on the word of someone that it was a 350. I looked up the codes (later)and it turns out to be a 305 with 4l60-e tranny. The odometer says 117000 miles. I know I dont want the 305, I havent decided whether I want the tranny or not. Any how I was considering parting this truck out. Can anyone help with what that engine tranny combo should be worth together or seperate? thanks....