If your on a budget, stick with stock cam for now. Cam stall and gears all need to work together. Should be pretty fast as is.
If you can't do all 3 at once do gears 1st then stall then cam. Plus it gives you something to look forward to performance wise after each mod.
Might mention" actually checking the sgock cam lobes" ..They DO go flat, due to lack of recommended zinc oils, and weak factory valve spring pressures.. Seen it, on replacement ,Magnum heads....