adding a back rest with rod holders to leaning post

[tmwtrfwler]

my leaning post on my 1801 doesn't have rod holders. so a removable backrest won't work.

1) I could add a couple bolt on rod holders and use a removable back rest

or

2) I can find a bolt on back rest that has rod holders.

Problem is I can't locate such a thing for option 2 on google. any ideas? thanks in advance.