What Resonator/Muffler should I have welded on?

[e30vert]

Essentially I am going to be selling my vert pretty soon and it has a few small holes in the muffler. I figured it would be nice to have the muffler cut off and a new one welded on. I could still use the OEM cat back twin tubes and that would work. Its an 88 ic with 5 speed manual M20 engine.
What is a good way to go so that the new owner would be please and find that this modification is well suited for the vehicle. I dont want to put an entirely new catback system on unless it is a reasonable cost.

MAgnaflow Dual tip? What model?

[Philo]

What do you figure reasonable is? Ebay has some stainless steel cat back's for 210 shipped. Not sure on the quality, but looks decent. If you go with a universal muffler it will be loud because they are too small. Then you have to add a resonator somewhere between the cat and exhaust. Which then leads to more work done by the shop doing the work. I think you see where i'm going here. It will add up and cost more while also being more restrictive.