I'm a southpaw, too. I'm also on a fixed income. The only 'wrong' handed gun I have is a Savage Axis in .243 Win. It ain't nothin' special to brag about, but I know what I can do with it.
I am a southpaw and used to have a LH AR, but got rid of it. Took it in the shorts on the resale value too. All my pistols are set up for RH shooting, except those that came with ambidextrous controls as standard. I even used to shoot bolt rifles left handed too, but I wouldn't mind trying one set up for a southpaw. I just wouldn't like to pay the premium, if there is one.
As a "Lefty" my first left handed rifle was a Remington 700 FS model with a factory offered Brown precision stock, the rifle was a sub-moa shooter with multiple bullets. I should have kept that rifle but had to have a lefty Winchester M-70 in .270 in stainless so I let it go.....and the model 70 eventually. OH....the rifles we should have not let go.
I eventually matured with age deciding single shot rifles and Marlin lever guns suit a "lefty" shooter just fine. I did buy my lefty son a Tikka T3X in 6.5 Creedmoor....he is set with one do all rifle.
LH Remington 700 sps in 7-08(favorite deer rifle), two LH Winchester 70,s in 7mm mag and 300 win mag.
I have a Savage 110L in .30-06 that has been my favorite for a long while.
Nothing much to look at, but accurate (with a Bushnell Elite 3200 3-9x40) and deadly.
I have a couple of other left-handed rifles, but that Savage just works for me.