Essentially I want final product to look like an LBB, albeit in PDF format.
Use a vector graphics program (Inkskape, Ilustrator, etc), format your page for 5.5x8.5", half inch margins. Then trim to visible when done, save as png, svg or wmf (depending on wp program).
In your WP program, same paper size and margins. Use a vertical sans serif font bold font... First line indent is 0.25" line spacing looks to be about 1.1 for most fonts, and justified. The following list of fonts and sizes are REALLY close on my Mac, visually close on shapes, or near exact but wrong stroke weight, and nearly duplicated the first para of Bk4 with the linebreaks...
- Charcoal CY - Regular 9 *
- Lucida Grande - Bold 8.5 **
- Microsoft Sans Serif - 9.5 **
- MS PGothic - Regular 10 *
- Nadeem - Regular 9 **
- News Gothic MT - bold 9 **
- Sathu - Regular 9.5 *
- Stone Sans Sem ITC TT - Semi 9 **
- Tahoma - Negreta 9 *
- Thonburi - (Regular or bold) 9 **
Of these, I'd use MS Sans Serif, Lucida Grande, Tahoma, or Thonburi. But I'd generally also take them up a point (and to a whole point), for easier reading than the LBB's had.
To assemble the resulting PDF as a booklet, just use booklet printing in Acrobat Reader. Print backs, load back into printer, and print fronts. Fold, then staple (needs a longarm) or stitch. Print cover on 110# card for durability. If really a stickler, and you have access to a guillotine cutter, trim outside edge square.