It sounds lovely to me!

I've been pondering a pergola project too. As passionate as I am about roses, I have lost any enthusiasm for training/tying in/ pruning a rose on a pergola. I had a climbing Etoile de Hollande in my last garden, (maybe 8 years old with canes 10' in any direction.) The fragrance was heavenly but the repeat was not great and in particular, I did not relish training those canes in to our deck railings. I really could have lost an eye several occasions when those big canes sprung back on me--and EdH is not a particularly thorny variety.

So, flexible/pliable canes might be one consideration for your choices.

Or maybe a thornless variety so they wouldn't be so scary to tangle with...Zephirine Drouhin, Kathleen Harrop, Renae, Annie Laurie McDowell...

Or a once blooming smaller rambler (maybe even with hips for birds/winter interest?) that would meander and mound on it's own so you wouldn't have to be up on a ladder every year tying in canes at all...

Also consider how to maintain the structure itself (staining/painting, depending on your preference/style.) Maybe a larger group 3 clematis, (something like Jackmani?) that would be able to easily cover a pergola using a couple plants, but would also be easy to pull off all together for pergola maintenance as needed.

Things like Trumpet vine and wisteria are too massive/woody/tenacious here (which I also fear about the rambler roses!)

Maybe something like Appleblossom or Sweet Autumn clematis which would get pretty big--30 feet?-- but I think not be woody and thus more amenable to being taken off/pruned out once in a while for pergola maintenance.

Sorry I'm not familiar with those roses you mentioned and that I started into all the non rose chat! Hope this doesn't put a damper on your rosey plans, just hoped to offer some food for thought on a topic that's also been on my mind a lot lately. :)

Here is a link that might be useful: thornless Renae