roller rocker ticking...

well 2 weeks ago i took the Stang to The shop to Get The Tick Looked at.. Something was Really wrong with the Car.. he said " it was my Roller rocker, and that i didn't have adjustable rockers.. so with out replacing them all he could do is reset them and they might Come loose again. " So with that i said Skip it.. he replace my Clutch, and cable. Rear Main Seal and Flywheel.. welded my Ex-hust leak.. and Gave me spare parts To take my old Parts back to the auto store for the clutch cable i installed and had to return.. Saved me 110 and some change. Well i walked out paying 790.00 for all that (minus) the 110 is about 680 for all repairs listed above... well now heres my Problem...

Last night i was on the e-way, not really getting on it just doing 5 over.. Well when i get off on my Exit i stopped at this party store to get a pop and i had the radio up loud because i was on the e-way with windows down.. well when i started the car back up i could hear the Ticking was Stuck in a load sound not fading at all.. i took it home and checked the oil and seemed to be a quart low. i figured? Just maybe that had something to do with it.?... So this Morning i ran to Get a quart of { Val Max life} and seen a bottle of motor honey and read the instructions and noticed it said quites ticking or something about Lifter ticks.. so i added it to my car along with the oil... Now at idle it sounds Great, When i Rev it, Not so nice at all.. Ticks Like a Baseball card on bike tire.. at this point i don't want to replace the rockers They are rather new Ford racing roller rockers.. But i looked at what the Set back is going to be.. and seen some Pretty nice adjustable Ford Racing rockers on jegs, Just over 200 and another set over 300.. and i figure i would change the Lifters and push rods also.. the guy i bought the car off of said he never replaced the push rods so if nothing else replace them as well.. don't Get me wrong i love my car more then anything in my life right now.. But after Just paying 790 i am really not looking forward to spending another 8, 9 hundred.. So this is why i am posting this.. Is there anything i can do or may have over looked.. the car still Runs Great.. i am not driving it anymore Because my neighbor (LT1 guy) said he had a buddy that broke a rocker and it fell down into the piston or something a Killed the motor completely.. is there anything i can do or anyone that can help me out??? Please and thank you in advance...

Thanks Man,... After Calling my Shop i got an estimate on Roller rockers, Push Rods Lifters and Header Gaskets.. Parts Will Cost Me 380 -ish, is i Get them at Jegs using there 15% Discount.. and labor is 420.00 So Roughly 800 for everything.

it Would also Help If Anyone Could List Recommended parts to use.. rocker, and lifter wise.. push rods and Gasket are basic.. I am Looking for Adjustable rockers.. i have Ford Racing in now..

Mods List as... 1990 Gt 5.0 302.. Bored 0.030 over, Gt40 heads, Holley System max, MSD 6 w/coil.. Anderson Bcam, flow master off road X-pipe. 70/or/75mm TB. MAF conversion, CAI/K&N filter... No a/c, electric Fan.. Thats all i can Pretty much think of under the hood..
Please Keep in Mind that i dont Make a Killing after taxes.. please do not list the most expensive parts, i will consider everyones opinions.. thanks again..