I got the bike back last night and I'm happy with the new fork. With the old fork off the bike I was better able to measure it and it's either exactly the same length as the new fork or 1-2mm longer. This means any change in head angle would be advantageous in getting a lower trail amount.

I had them leave the steerer tube uncut so I could experiment and found that using a 40 degree rise stem, 6cm of spacers put the bars at the same height as my old quill stem + bars with 2-3 inches of rise. More importantly, this same configuration put the fore-aft bar position right where I wanted.

I only rode about a mile to test out the new position and there is a definite change in the handling of the bike. It feels more sporty as I hoped it would and using a trail calculator, I went from 74mm to 63mm or less of trail. Once I get the steerer tube cut it will also look better with the flatter handlebars.

Overall, this fork swap accomplished all the goals I had for it and it was also quite a learning experience. I like the simpleness of the threadless system although it requires you to leave the steerer tube a bit long if you want any vertical adjustment after the fact.