If you've got the dough most definitely get new wheels.
Most swap to 15" 5 lug when they go new but that entails new drums and maybe upgrading to disc's up front. Disc's up front entails a new dual master cylinder which then leads to deciding between manual or power brakes. It's never ending LOL...
We won't get into an new upgraded IFS and power steering LOL.
As an FYI
I had an original wheel break at the lug holes soon after I got it running. I was test driving it on the original bias ply's. It was the spare wheel that must have been under that 49 for ages.
But the other wheels were solid and as I posted they do fine for back road driving with tubeless radials.