In reply to arbolito:
> Thank you for the replies. I put my bouldering grade because I understand there's a couple places in the routes where a bit of climbing has to be done to get to the peak, so I wanted to know if my skill is sufficient.
Those moves are more like climbing really steep stairs than actual climbing, so that's not going to be the problem.
>For the rest of it, I know both of these peaks are considered a hike, through the standard routes.
True, but this goes for most easy alpinism, and I hate the 'considered a hike' trend which seems to be pervasive when talking about F/PD mountaineering. Even though the technical part of it is easy, do you have the skills to assess situations on the ground when the weather turns? Do you know how to assess glacier conditions? Do you know how to get yourself down when you get scared? What if you end up in a white-out?
> As for the crevasse risk - Following a well trodden route (gran paradiso via vittorio emmanuele, mt blanc via gouter), how unlucky would I have to get to fall into one, if soloing?
Low probability (although growing with current summer conditions), high consequence. Are you willing to take the risk?
I would really, really recommend to follow a course before doing this kind of stuff solo. It's also just way more fun to do it with a partner.
Make a spread sheet of all the costs you're going to run to do it solo. There's a high likelihood it would be similar or more than following a course. It might not get you up these two mountains but it gives you the skills to do so and might give you some friends to do it with next year to boot.