Wheel ID and tire choice

[Det57]

Is this wheel the dreaded "Widow Maker" split rim or not? It appears to have the outer ring but the ring does not have a split in it...it (the ring) appears to be a solid piece. The hub center is 6 1/4". Truck is a 69 C50

The tire on it is a 8.25x20. with the inner tube.

I like the look of the wheels and was thinking of getting them blasted and re-painted and putting on a 9.00 R 20 with the inner tube and flap.

I don't want to change the wheels right now and the tires are very bad.

Is the 9.00 r 20 the right replacement size for the old tires and proper fit for these wheels?

Thanks