I don’t see anything in here that you can’t do in Layout.
There are just a few items in play here… a Title Block, Tables, Text Boxes, and Viewports.
…and Layout can accommodate all of these.
It will take a little bit of time to build all of these Tables… but the Golden Rule for that is that you Don’t Ever Build Them One At A Time… when you can use the Copy/Paste command to recreate work you’ve already done…
So spend some time and make a few basic table templates… that can be used as a starting point for a majority of the tables you want to create. Just get the basic formatting in place (e.g. merge some cells together, add in a bit of temporary text, format it, center it, etc…)
Most of the commands you need for this are available on the right click context menu.
Specifically… Merged Cells (both horizontal, and vertical are used in a few places).
Rotate Text… Convert Text to Full Width
Open the Fonts panel to select the Center Justification button.
the Text Boxes will cover all of the regular text item… adjust the width of the text box so that your column sizes flow properly.
Use >File >Insert to add in new viewport, and that will link any of your SketchUp Drawings to your Layout project.
…the rest will be figuring out how all of this stuff get positioned on your page in layout.
Polishing this up… so that your tables have some Bold Lines built into them, which will help Separate the major column blocks from one another…
I don’t think Layout is quite there just yet. Ideally (or traditionally) you’d have a Cell Style Panel which lets you turn on/off different edges so that some are bold and others are not. and frankly that’s always a bit a hassle to do anyhow.
So in place of that consider adding in empty columns to help space columns apart. Or, just draw in a line on top of a finished table to help outline certain areas of it. This won’t be any more of a problem then adjusting cell boarder settings in a more traditional spreadsheet app.
I do notice the you can add in a Solid Fill into a table cell… and that could be well used to help emphasize and create sub-sections within a large table size schedule.
e.g. fill in an entire column, and reduce it’s size down to the minimum allowable.