Aluminum rocker bodies adn roller bearings work fine in a drag only application, I think they would be just fine for your application. I think the steel bodies and bushings are more for the truck pullers and drag week crowd, or extreme spring pressure and/or RPM. Lots of miles or lots of RPM and lots of money for the steel rockers (double???). I have run the race rockers or paired rockers or whatever you want to call them, with aluminum bodies, and have several friends that run them for years in drag cars, zero broken rockers.
One thing that might sell you short, if you don't order them... is that most in the box or on the shelf, are centered rockers. I don't know why they even make them that way as standard. I always use offsets. you will need at least an .080 offset left and right for each pair, on most manifolds (including your DOVE tunnel-wedge). .170 offsets are even better, but you end up dong some work on the pushrod tubes. I have even used .250 offsets on the intakes (only), with .080 on exhaust, or even .180 and is what I use since my intake port is moved inward (BT HR heads). I know of one intake that used a .500 offset on the intake side, on a sheetmetal intake, and straight up on exhaust. So I wouldn't buy them without at least a .080 offset both ways, that should be about perfect on your DOVE, and maybe no clearancing... or just a tad here and there if you use 7/16 pushrods.
One other thing that you probably already know, is the paired rockers use ball ball pushrods, and oil through the pushrods. Not a problem for you since you have a BBM block, but you will need to restrict the oil to the rockers either with restricting pushrods, or restrictors in the lifter cross over galleys.
I see someone has posted while I am a slow typer but I will post this anyway.... just my .02 cent opinions, your mileage may vary.