Hey Lopici,
Assuming that the time-lapse has been processed to deal with exposure changes and other fun stuff that happens when one is standing in a spot for hours and hours, you could just import the sequence as an “image sequence”, so it appears as a video asset.
With regard to the size of it, as Larry suggested, when you pop it in the timeline, you can use the Effects Controls to re-size, add keyframes to make Zoom and Pan across the video.
Using a nested sequence within your HD Sequence is another consideration.
But it all comes down to the power of your hardware and the length of your time-lapse, in which case it might be more economically to turn the JPeg images into video?
Many potential solutions, but keep in mind that you will always end up on 1920×1080. So you might “only” need something that is 4,000 in width, rather than 7,008?
Only you will know, when you see it on your screen.
Have fun.
Atb
Mads