That's about the extent of the "cheap" mods.
The stock clutch is going to slip on any chip settings higher than 80 on the F5 (ask me how I know), so more mods without a way to put the additional power to the ground are useless anyway. A higher HP rated clutch is THE next step.
You can also do the BS mods like CCV reroute, zoodad, AIH delete, etc but they're not going to give you any discernable HP increase. You can maybe fool with stuff like the 6.0 intercooler, wicked wheel, EBPV gut, etc...but like I said, the F5 gives more power than the truck can hold so its irrelevant.
After that is injectors and big oil, then a new turbo to keep up, then new injectors to keep up with the new turbo, wash, rinse, repeat.
2002 Arizona Beige F250 Ext Cab Short Bed. 7.3L 6spd 4x4 140k
2" leveling kit, 285/75 Mastercraft AT2's,Napa BFF, DiPricol Pryo/Boost, DP F5 NS/stock/hi/40/80/120/140agg-lope, Toolbox, Audio goodies, IH shiftknob
muffler delete, CCV reroute, AIH/Foil delete,