Which Roses to choose

Hello again, I was hoping I could get some advice on which Roses to choose to grow up my wall. I've already put up the trellis in anticipation (as shown) but now need to pick the Roses I want.

I have my heart set on red roses and would prefer it if they were scented as I plan on spending time sat out in the summers to come, although if they were un scented then this wouldn't be a deal breaker.
The top of the trellis is 2.7 metres from the floor so I'd like it if I could get the roses to grow to the top and if possible further as I would like to train them to grow across the top of the window.
The ground I'd be planting into would be the same as the one that is shown in my previous post so I'm pretty sure I won't have too much dificulty in actually growing the roses but as I write this I have a feeling some will be already shaking their heads at my naivety but again all advice is greatly appreciated.
So far I have looked at the Paul's Scarlet and also the Ena Harkness as having the things I'm looking for ie height, length of bloom etc but would I'd appreciate any other suggestions from the kind and knowledgeable folk on here.
I'd also like to grow a white coloured clematis in combination with the roses but have no idea which ones would be best.
Thanks for taking the time to read through my post, Chris.

 

Hello Chris, this one would get my vote every time...Chateau de Clos Vougeot
For a white clematis, Gillian Blades, Henryi or Miss Bateman?

 

Hi and thanks for the replies so far.
What a beautiful flower the Chateau des clos Vougeot is although after doing a quick google search it seems to have quite a gap between flowering and as suggested I think I'd want one that would repeat often.
One of the reasons that I thought of the Paul's was that according to the Thompson & Morgan site, it flowers from June to September. I assumed this meant that it repeated during those months.
It will be facing south east and would get quite a good bit of sun til early afternoon when the sun goes behind some trees.

Is there a time frame that I will need to adhere to before I can no longer plant or would I be ok having a trip round some garden centres to see a flowering plant before planting?

 

The big pluses with Chateau de clos Vougeot are the scent and the vigour. It also withstands the sun without fading, which some reds don't.
If you're going to plant a potted rose, Chris, you can do that whenever suits you. You might get away with bare-root planting still...(David Austin just for an example deliver until May), but you won't see what you're getting until it's settled in.