W A N T E D: Beater frame/f+f, large or XL, for cheap SS/fixed build up.

Any1 out there got any large/x-large sized frames out there that would fit me (6'3") that could be built up into a cheap, durable fixed gear/single speed beater bike to get about on. Don't mind it being beat up or heavy or a bit rusty. Few essential details:

• Nothing with super old sizing/spacing (needs to take modern/commonplace components) ex. needs rear dropout spacing to accommodate modern 700c wheels
  
• Horizontal or track dropouts at the rear (and potentially front)
  
• Needs to be strong/solid - no broken or seriously fractured/cracked frames
  
  

Looking to spend no more than 50 but will have a look at anything.

Help a brudda out!
Any advice appreciated to.

Cheers