So I've been restoring my Frejus professional frame to sell for a newer frame, im looking for something more durable and reliable. I dont want to ride a frame from the 60's, seems dangerous. I was thinking of building up a 55cm Peugeot frame from the mid to late 80's with HLE fabrication with Sram, Cinelli, and Campagnolo components. I have also been looking into Cannondale, De rosa, Bianchi, Gios, and Orbea frames. I have some parts already and i would like to build the bike around these components. Mavic helium wheelset, Giro d'Italia bars with Flight deck 3 x 8 STI, and a Vetta gel saddle. Is there a way to get old frames to work with new STI or 8 speed technology?

Thanks.