Engine swap towing

I have a 91 s-10 2.5L that I have been working on for a while now. I want to turn it into a show truck, but the problem is, I also need a truck to tow with. My question is what would be the best engine to swap so I can tow about 4500 lbs.

I would seriously just run a basicly stock 350, and possibly drop a mild cam in it.
For 3 reasons.

1. It's got the power that you'll want.
2. the dressup parts are so easy to find, and the most affordable
3. It'll look Great.

Don't forget to send in those pics