Just finished one today. It is a bit lighter than you are targeting 43#@28"; however, the bow is only 58" long (56" ntn); however, I think the wood would have been able to handle your draw weight and length easily. I'm going to post the bow as soon as I get pics taken, but for the moment the bow has a 4" handle. 1 1/8" wide, fades are 2" out to a widest 1 1/4" through the first 1/3 of the limb then gradually tapering back down to 1/4" tips. Maybe add 1/4" to 1/2" to all the widths above (except for the tips of course) and I think you'll be there.
I have to say I think I am in love with this mulberry wood. It is incredibly light and responds amazingly well when drawn. I have worked with mostly hickory plus a lil bit of osage and think they are great bow woods, but this little bow with the low draw weight is slinging my medium-heavy arrows at 150fps (the same as some of its larger, longer and heavier siblings). Good luck! - Mike