That's a very good idea, I have a similar set-up with a 50S international. Heaps of line capacity and easy to handle. 

there is lots of talk about Talica, Rachets not being very loud. You don't need anything more sophisticated than an International or tiagra for trolling, and they have nice loud rachets.

what about the new narrow spool penns  i love the narrow spool concept  for ease of keeping an even spool  especially with braid 

 remember if u go 80 lb orb 130lb braid you are going to need   at least  80 lb stand up rods  

 and i believe  with stand up bent butts are the way to go with rods 

  what ever u do  80 or 130 line weight is the way to go don't play round trying to be a trout fishing man playing with light weight silly string 

  i have my ideas of the perfect stand up outfit  

 its bent butt  top line  rod   and penn 50s 

 until the penn 50s is proven otherwise , ?????? 

loaded up with top grade 130 ib , hollow core 

   i 

 always try to keep an open mind  

 question, does the penn  50s  hold more  braid than the shimano talica 50

I have built all mine with Rollers about 10-15 years ago. These days a lot of people use Silicone carbonite or ceramic guides and roller tips, I'd do the same if I built any more rods. Roller tips are good for prevent line wear from trolling due to tip wiggle. 

All my Rods have straight buts, but can see the benefits of bent butts for deep fishing like broad bill, and also keeping the tips of corner rods low. I'd stay with Straight butts. I also make the butts on my rods really short as well, 10-11" from edge of reel seat to the end of the gimbal. keeps the reel low which I find helpful.

What have you seen and heard re repairs there steve?

You of all people know I have seen and serviced 100's and I can with 100 percent truth that I havent seen or heard any faults what so ever. Including Tony Ortons charter reels and a few mates of mine that have caught 20+ marlin on the one reel last season. Also dealt to some sword fish with no need of any parts replacement. In fact the only issue I have had with a Talica 50 is due to someone pulling it apart that had no idea what they were doing and damaged the fins on the anti reverse when they attempted to put it back together. Then made a song and dance about it.

From a service point of view - I rate them extremely highly, They do not have as loud a clicker as a Tiagra that is fact. But it is loud enough to hear, 

Its a different design that is fact. 

Everything else I seem to be reading re Talica 50s is hearsay

They are a perfect reel for filling with hollow braid and top shotting, for marlin / tuna / swords or fishing 15kg. I troll with mine and I can definitely hear the clicker no problem at all even when cranking the sounds.

But to answer your question All options you are looking at will be suitable and it will come down to personal preference, I run a set of talica 50s filled with 80lb hollowcore power pro braid, top shotted with 24kg. I also have a set of tiagra 30ws And both are perfect for what I wanted to do. Light and easy to handle, 

Disclaimer - I was the Shimano service manager for 7 years

Cheers

Irony........Trolling in a trolling reel discussion