I am overhauling my bike. It is a 2008 Novara Randonee. I tried installing two different used STI shifters which did not work. It is so time consuming installing shifters that I don't want to risk installing more incompatible used ones. So I want to get new ones and I want them to work and be compatible so I was hoping someone here could help.

Below are all the specs. I want new shifters which are cheap and durable. It is okay if they are heavy. I actually found some that I think will work but I wanted to ask someone. I am using the original derailleurs. Maybe these? Thanks.

Shimano Sora ST-3500 STI Levers > Components > Drivetrain > Road Shifters | Jenson USA

Should I get new derailleurs too? They work but I have gone about 10,000 miles on them.

Best Use Road cycling
Frame Reynolds 520 chromoly
Fork Chromoly
Crankset Shimano Deore 48/36/26
Bottom Bracket Shimano Deore Octalink
Shifters Shimano Tiagra
Front Derailleur Shimano Tiagra
Rear Derailleur Shimano LX
Rear Cogs SRAM PG-950 11/32, 9-speed
Brakes Shimano R550 cantilever
Brake Levers Shimano Tiagra
Rims Mavic A319S
Front Hub Shimano Tiagra
Tires Vittoria Randonneur 700x32
Handlebar Ritchey BioMax
Stem Ritchey angle adjust
Seat Post Ritchey Comp V2
Saddle Fizik Rondine
Pedals Platform w/toe clip
Headset FSA Orbit X
Chain Shimano HG73
Weight 29 pounds