The last year of the CBR600 F2 is the same as all of the F3 forks iirc, the rest of the F2 forks are not cartridge if I recall. But the last year is definitely the better fork. These are 41mm, and they are several 41mm triples that I have researched over the years that have substantial offset. I don't like the Honda cartridge forks so much aesthetically though because the lower brake caliper mount sticks out much further back off of the fork leg, and my vintage GS forks generally didn't look quite like that.
I do have a real nice set of VTR1000F Super hawk 41mm cartridge forks in Honda PC800 triples here that I wouldn't mind selling, and I have some upgraded calipers for them also, comes with 4 piston and 6 piston calipers to choose from. I was going to angle mill the backs of the calipers for more clearance to the wheel spokes
The Yamaha R6 forks were the lightest modern conventional oriented cartridge forks I've ever felt, but I saw a crashed set, and the tubes are quite thin... also they use a 320mm rotor, I prefer to stick with 310mm as a few Honda floating rotors are that size and have the same bolt pattern as a Suzuki GS hub, and I think that is the same as a lot of the older Honda 6 bolt rotors.
The CBR 600 F4 Fork is 43 mm diameter and fully adjustable compression and rebound, this is a very nice deal here, but has the same type of brake caliper mount.
The 43mm Suzuki Bandit 1200 Forks are quite possibly the best thing out there, as they are as tall as a GS1000 Fork or other similar Japanese Superbikes, and a look completely vintage almost exactly like a 1982 or 1983 GS 1100 GK Fork...
They don't have caliper mounts like a Honda Forks, they have caliper mounts like a vintage Suzuki GS. They also have really great damping stock.
As for triples, Yamaha VMAX 1200 from 1993 and newer takes 43mm Forks, and has 55 mm offset. They use a slightly taller a stem than a Suzuki GS. This may work perfect for the Honda CB750. If you have a CB stem to measure, I have a couple of these triples here.
For a shorter stem like what a Suzuki GS takes, they use the same aluminum Hayabusa and GSXR stem in the V-Strom 1000 triples, which take 43mm forks and have around 44 mm offset. These are modern Adventure bikes with 19 inch front wheels. They have a good bit steeper rake, however. This triple would work pretty well if it would fit in the CB, with taller rear shocks and an 18 inch front wheel.
I did a huge write up on this on the GS forums. I spent a ton of time one winter scaling pictures of all sorts of different triples for 41 mm and 43 mm forks.
The conclusion that I basically came to is that there are hardly any fork and triple packages which will give you the right offset and a very good performance fork in the proper length; you have to mix and match sport bike forks with adventure bike, cruiser, Etc triples.
If you find the right triple that works for your geometry, but it is around 190 or 195mm width center to center, most modern opposed piston calipersmay give interference with vintage wheel spokes which are wider than modern mags.
Around 204mm (common width) and wider triples the opposed piston modern calipers have a much better chance of fitting, especially with the Honda CBR/VFR forks
Generally I think the best thing to do brake wise would be to abandon the opposed-piston 4-piston (&6 piston) calipers if they will have interference problems with the wider vintage wheel spokes, and then just go with a Suzuki GS500, ninja ex250, ninja 1000, GSX 1100, Concours, Etc 2 piston sliding tokico caliper, as they have a steel mounting bracket which can easily be welded onto with additional metal to make these brakes look as if they were originally intended to go on the forks. These eliminate the inboard clearance problems with wire spokes. I have 8 of these calipers as spares because I like them so much for retrofits.
The F2/F3 calipers are a similar design, one sided 2 piston sliding caliper.