Twin Spal fans & a Ron Davis single-pass radiator is on one of my cars that has a condenser & a big intercooler.
A Griffin GRC 126242 radiator (27.5x19x3") is on my other car with a MarkVIII fan.
Both are 1000 rwhp turbo cars with a rough amount of engine heat to fight off. If the Ron Davis went out on me, I'd try the Griffin on that car, too. The Ron Davis is $$$ but it looks good, can come with a killer integrated overflow tank, and fans with shroud. Nice set up.
I recommend putting a cover on the turbine housing, and carefully inspecting the exhaust for any places that it comes near plastic, rubber, etc... Run Accel 9000 plugs with the ceramic spark plug boots, and you'll never have another melted boot. I still run the plug & wire sleeves anyways, though. If you have any other pipes that are causing issues, I recommend this stuff: https://www.summitracing.com/parts/HSP-177201
It is my opinion/belief that you want oil temps to routinely operate in the 200-230* range, and that they typically are 15-30* (sometimes hotter for brief stints) higher than coolant temps. The car should routinely allow the oil temps to get over the boiling point of water and upwards of 220*, because water is the natural byproduct of combustion and it will build up in the oil if it is not boiled off, and water is bad juju for lubricity.
With this in mind, I run my cars with a 185* thermostat. At speeds above 40mph in the Ron Davis car, it does not rely on the fans, at all, and coolant temps stay right at 188*. Not sure about the Griffin car (stock gauge), but it's never been an issue. That is the coldest thermostat I am comfortable running. I set my fans to come on at 205*, and turn off at 195*. This gives the car a minute or two from its steady-state 188* to handle a traffic light without kicking the fans on, allowing me to get back to speed. In stop-and-go traffic, the fans kick on at 205, it usually doesn't go over 208*, and in the worst heat I've seen in the car, ~100*F summer day, I've seen temps as high as 213* before they turn back around, and the fans still bring it back down to normal. I'm very comfortable with that.
When I see temps approaching 220* with aluminum components, I get pretty nervous. There's no way in hell I'll let it much over that. I never want to see 240*, because that's the point I consider dangerous. With iron heads, I think it can take more. I used to circle track and pushed temps closing in on 300* with iron block/heads. But, I wouldn't ever do that on the street, we did a lot of maintenance between sessions. Normal motor oils (dino) starts breaking down above ~275*, and good synthetics (not all) can go over 300*.
Anyways, I'm rambling at this point. Hope something there was useful.