Please note in the last 3 picture the lowering blocks and this is just one of dozens of threads that been been posted in here alone, Isn't a myth bud, been dealing with those things since the Evo days when short chubby guys had to get their biker freak on and I've replaced swingarms or welded broken mounts on at least a dozen bikes myself. You do some reading you'll find all lowering block kits come with big disclaimers about voiding warranties on related parts.
Your pictures are of a 2001 and down swing arm. Hollow tube arm woit a small, round adjuster. No support for the axle nut etc. Those arms were junk and several have broken with and w/o lowering blocks. Lowering block and leverage could have contributed to the break with that style swing arm but others of that vintage broke also, same place that didn't use blocks. The 2002 up arm is stronger and completely different.
OP, I ran 1" lowering blocks with a 13" shock on my 2002 FLHTC for 15 years with no problem. Never a sign of an issue (and I checked often). The 13" rode better than a 12". Give it a try, you can always remove them. Just understand, the bike will sit lower.
Just buy the 12" Ohlins and you will be fine. Ohlins makes an outstanding shock and while an inch more travel would be good, the 12" shocks will work just fine. I just recently put the 13" 772s on my touring bike and it really makes a big difference.
The Ohlins 2-2A from Motorcycle Metal are 12" shocks with 3.25" travel. Just as much travel as the 13" shocks but sit at 11" height with sag correctly set.
I had over 30,000 miles on my RGU running Ohlin 3-3s from Howard and lowering blocks. When I bought the new CVO Limited I sent the shocks back to Howard to be rebuilt and then installed them and the blocks on the new bike. 7,000 plus trouble free miles on that....
Thanks for the input guys. At this point I think the best thing I can do is give Howard a call. With his experience I'm pretty sure he would be able to come up with a setup for me.
Being someone who has had experience with Ohlins I would recommend the pro actions
I've been considering the Ohlins for my RK , your thoughts on the pro actions over them before I spend money ? Solo riding, mostly commuting but do like my twisties which we have in abundance around here.