I take it your only doing the diff casing?
Make sure you seal the Diff up, But I would strip it right back 1st.
You will never get the bead blast out if it gets in the Diff carrier and bearings, its a no go.
Cheers to you so far,
I am a member of the club and will be at the next meet, as for taking on this sort of mod is no problem just looking at any pit falls before I start but this wont happen untill the winter months.
When you did change from pillar tp wish bones and you got the kit did it come with measurements or drawing also did you use the old hubs and any other bit.
Is there any down falls along the way