Bulb Questions

I have a few questions in regards to changing the cluster and HVAC bulbs from green to blue. I've done a lot of research and read Ambo's thread about how to do it, but I want to be 100% sure I get the correct components.

1) For the interior cluster I'm getting these 5 tri-leds in blue (first item on the page), they should fit fine, right?

2) For the HVAC, will these 194 bulbs in blue fit (first item on the page). I'm not sure if I should get the 10mm or 11mm and how many I would need, isn't it two bulbs?

3) The plastic on my cluster is tinted green. I'm hoping the blue bulbs will shine through, have any of you tried this or know if it's possible to buy clear or blue tinted plastic for the cluster?