Identifying mods vs original

[Bossco]

Being unedumacated in things electronic, I cannot tell whether the apparent difference in various components between this DR-103 and those shown on the wonderful mhuss' website are significant, normal or optical ilussions... Expert opinions will be great appreciated as I consider whether to throw my hat in the ring to bid on this DR-103:

How original ... or not? DR-103

DR-103_gutspics.jpg (490.29 KiB) Viewed 919 times

[Dr.HI-TONE]

I recently picked apart the same amp. It isn't "all original" but it isn't too bad either.
there are a handfull of replaced resistors
the biggest thing is the replaced EL34 socket.
the amp is an early 1972 not a 1970 as initally described.

[Bossco]

Sorry for the repetition. I tried to search through the board before posting but "the blind man could not see."
Thank you for the help!