350 crate engine intake and carb possible for $3,000?

[AirSpeed]

I gave my daughter my 69 C10 a year of so back and she wants to put a new engine in it. It's the truck in my profile pic. The engine in it now is the original 307 with a tiny little Rochester 2 barrel that's worn out. The engine runs but it's very tired. She wants more power and reliability.
She's looking for a 350, intake and four barrel carb. The truck has a granny 4 speed, it's lowered 4/3". Has anyone seen a deal on a 350 crate with intake and carb for around $2500/$3000? We will be using the original ram horn exhaust manifolds and adding a dual exhaust to replace the stock single.
Thanks for any suggestions!