58cm Flat Bar Bike ~£200

My housemate had his specialized sirrus stolen recent, and is looking for a new bike.
He's about 6ft, so is looking for a large bike, preferably with a fairly upright riding position. It's mainly for commuting and pootling around - He'd like something with flat bars, gears and in decent knick.
~£200 or less, though I might be able to convince him to stump up for something more expensive if it's in really good condition.
Cheers

On the small side size wise and a flat bar MTB rather than road bike but I have this for £250

1980’s Saracen Tufftrax. I had the frame and fork media blasted and powder coated sky blue then Waxoyled the inside of all the tubes. It was built up with new rims, headset chain, cassette etc. It has a Tange MTB sticker on it because I had one. I think this has been ridden twice on hardpack since being built, under 100 miles.

Frame & Fork: Saracen Tufftrax. Seat tube measures 46cm C/C, top tube 55cm C/C.

Headset: Ritchey 1”
Stem: Nitto “golf club”
Grips: Club Roost

Brakes: Shimano Deore DX MT62
Brake Levers: Shimano Deore DX MT63
Brake Pads: Ritchey

Shifters: Shimano Deore DX MT62 Thumbies (7 speed with hidden click)
Front Derailleur: Shimano Mountain LX M452
Rear Derailleur: Shimano Mountain LX M452
Cassette: Shimano HG70 11-28T 8 speed
Cranks: Shimano Mountain LX M452

Hub Skewers: Shimano Deore XT
Rims: WTB Dual Duty
Hubs: Shimano Deore XT M737
Spokes: Sapim double butted
Tyres: Specialized Rhythm Lite 2.3 (great on hardpack, if you want knobblies I have some Conti skinwalls you can have, Premolar and Cannis)

Saddle: Sele Italia Sprint suede

Cheers Tad, thanks for getting in touch. Think that will be too small for him, he was riding a bike around that size before his most recent one and found it far too small.