I've got 112 from 1999 to 2009, guessing we're off on a year or so on one or both ends. He was also the 8th best baserunner during that time (246 SBs to use a basic stat). Alcantara has 22 SBs in 171 games since the beginning of last year, at a lower success rate than Cameron, so don't think we're getting anywhere close there. Cameron's K and BB rates during that peak are both better than what Alcantara is doing in AA right now, his ISO was higher than anything Alcantara has put up above the Complex League (excepting 20 PAs in AA last year).
I think it's pretty unlikely Alcantara puts up numbers at the plate similar to Cameron. I think it's very, very unlikely his overall offensive profile ever gets to a Cameron level. I think it's a magnitude more unlikely that he eclipses Cameron in total value. Aware you said offensive value, and yes, I know, 0/35. But they still count.
And that's not to cast him off. If he turns into Brandon Marsh, to pick a name on the CF leaderboard, that's a cost controlled salary for essentially the same production since the beginning of last year we've paid Cody Bellinger $45m for (while on the hook for another $50+m).