New here to the forum and have just began building my stew mac 000 kit and have the first of many questions

I have read MUCH info here on the methods for sanding the kerfing (sanding block vs. bar vs disc). I also have Bill Cory's book as well. So, I am not going to invest in a disc at this point as I need to keep costs down as much as possible. I will be making either the sanding block/wedge (per stew mac instructions) or the sanding bars (per Bill Cory's suggestion)
I have read mixed reviews and conflicting information on the stew mac block as people state the wedges are incorrect to get the appropriate 1.5 and 5 degree sanding angles.
-Does anyone have the correct dimensions of the wedge blocks? I would cut them and then attach them to a 1" x 24" board if anyone knows.
Or, if I made the bars, would I just use the top and bottom braces and trace them on a 2x2 piece of wood? Problem here is I only have a jig saw to make the radius cut which may not be an option.
Which of the 2 options would be best?
thanks for the newbie help. I have already glued the head/tail blocks and will be adding the kerfing soon so am trying to prepare for the rim prep.