As far as I'm concerned, they have the BEST cams for inlines. Period. They've been making them going on forever.
A 252 or 260 Compcams High Energy might be right down your alley, I'd go for the 260 myself with your 4.10s for towing.
NOTE: Just noticed CLifford is getting a little slim on the number of grinds they have for the 240-300, they used to have WAY more. You can always call and ask them what they recommend, as again, they know these engines better then anybody.
I've used their parts to build a couple 300s, 200s, 250s (Fords), and 250 and 292 Chevys. All turned out VERY GOOD. They're more expensive then most cam places though...