Im scared

I think its time to upgrade to a newer truck,my old fld,even though it never let me down and still doing the job,its getting old and the imperfections inside and out will require too much money and time to get where i feel good about myself and the truck going down the road.
Enjoying the reliability of this beast for 16 years made me very reluctant and scared of new trucks and can’t make a clear decision on what to get as far as truck brand,engine etc.
My newer truck must be 2008 and newer,im working with $90k budget and i prefer a mid roof and 13/18 speed manual.
After doing some research i ended up with two choices 2020 freightliner sd122 500 hp dd15 200k something miles or freightliner coronado glider(different mileage and years) s60 detroit 500hp.
If you were in my shoes what will be your choice or will you go another route?
Your input is very appreciated.

 

What should i be aware of when shopping for a glider?

 

I never had issues getting parts for my 2000 3406e cat and from what i gathered,plenty of trucks still running the s60 and no problems finding parts

 

Thank you for your input,i actually park my rig in carlisle,a good shop close by is a real plus.

 

Reliability is my number one concern,im trying to narrow down what kind of truck will give me peace of mind knowing that is not gonna spend most of its life in the shop or on the side of the road waiting for a tow truck.
To answer your question 2020 freightliner sd 122 under 300 k miles is around $89k
Freightliner coronado ranges from $50k to $100k depending on the year and mileage.
I didnt look into warranties and origins yet since i was not sure which will be a better choice.
Will be putting a good down payement,finance the rest and pay the truck asap,nothing i hate more than debt.