What model Pantera is going to make a difference. If it’s the boat in your picture it looks like maybe a classic with the deck insert in it. But either way I’m not real sure the Suzuki in that HP range is going to be your best option. That’s going to be a small displacement 4 cylinder, where as Merc and Yamaha offer their big blocks in the 200HP range.
The classics of that era ran ok with the 2.5L mercury, but the 3.0 was a better option, and I think the PIII really didn’t like the smaller block. Can’t speak to the PII of that era but I think it would likely do the best of the three models with less torque as it’s quite an efficient package.
Your set up will make a difference as well, such as jackplate, poles, battery type etc. too. I’m sure someone who has forgotten more about these boats than I know can chime in but if it were me and I could find one I’d be putting a 200 SHO on her.