how much work is it to get rid of a straight pipe?

No, most muffler shops will knock it out in no time. Won't be super cheap but not super expensive either, at least labor-wise. It's the parts prices that'll kill you. Can you fit mufflers and a crossover on the existing pipes?

If there is room you may be able to just get a muffler installed. KenF is correct, take it to a muffler shop. An un-muffled V-6 would sure sound awful.

KenF I know very little about cars. I know the basics but I don't know what you mean regarding ability to for mufflers and a crossover on the existing pipe. The more I think about this vehicle the more I'm beginning to cringe and wonder if I'm going to do ok with it. This is my first vehicle so time will tell! Muffler shop it is . hoping they don't require my arm and legs as payments lol thanks to you both.

Also wondering.. Would either of you happen to know the names of the parts. Perhaps I could call a few places to price the parts before hand. Thanks

Take the car to a muffler shop and get an estimate.