Recumbent - Warped chain idler pulley shafts on a R-50...fix or replace?

I've owned my Vision R-50 for a couple years, and love it. After a chain derail on the from chain ring (from the smallest to the middle chain ring), I noticed the chain idler pulleys are warped from their normal alignment. It seems when the chain seized between the two chain rings and I was still pedalling, the chain tightened up between the two pulleys and torqued them (or rather, the shafts) (see the attached photos). I was able to complete the ride (it was a short 35km one), but I'm concerned about chain alignment and undue wear on drivetrain components because of this.

In the case of the lower pulley, it seems that the transverse pulley shaft connected to the long black rod that attaches near the bottom bracket got bent. The upper pulley's shaft attaches to a lug mount on the main frame tube just above it.

Can I bend either shaft back myself? I know the parts will be weakened, but the normal forces on these pulleys aren't that high, as far as I can tell.

Obviously if I have to replace them, I run into the usual problem of finding parts for a bike that isn't in production anymore (let's hope Hostelshoppe has something kicking around).

Any ideas or suggestions? Thanks!

Can I bend either shaft back myself? I know the parts will be weakened, but the normal forces on these pulleys aren't that high, as far as I can tell. Obviously if I have to replace them, I run into the usual problem of finding parts for a bike that isn't in production anymore (let's hope Hostelshoppe has something kicking around). Any ideas or suggestions? Thanks!

It's not clear on the photos how the posts are attached to the frame: are they welded to the boom? are they threaded through or part of some adjustable system that can be taken off?

If they're threaded and you're very worried, chances are the threads are standard, so it'd be pretty simple to turn new posts on a lathe and the right dies. If you don't have access to a lathe or you don't know how to use one, locate a technical school near you and ask the mechanical workshop teachers, they're usually happy to help for very cheap (if not free).

If you're not that worried, of if the posts are welded, get a hard rubber or plastic mallet, slip the idlers/bearings out to leave only the bent posts, and slowly bend the posts back straight. If you're a little careful and patient, it shouldn't be that hard. If you do that, the posts won't be weakened: threaded parts like these are usually made of soft steel or unquenched semi-hard steel so it's really not a critical material :)

Regardless of the fix, it looks like they were the victims of a too-short chain which was shifted to the big/big combination. Are they really necessary? It looks like all the pair does is take up a bit of chain. A single idler would be enough for routing purposes.

The pulleys are held to the frame and the bar with an M6 stainless steel bolt and nyloc nut. The stainless is soft. The reason I say that is that it happened on mine right about the time I had decided to take the take-up pulley off. Take the bolts off, measure then and then check the McMaster-Carr site. It is something like $9 for a bag of 25, they won't do partial bags. If the lug on the bike isn't bent this will fix the problem. I took the take-up pulley off of mine since I was the only one who rode it.