As usual Andy is spot on.
Also remember dinner jacket pockets should be jetted / besom, ie no flaps. I got a modern dinner jacket which came with vents and flaps. I had the vents closed, no problem, and just tuck the flaps in rather than pay for them to be removed.
My shirt is Thomas Pink 'marcella' style which has the pique texture on the collar, bib and cuffs but is very light on all the unseen parts.
You can get decent cuff links and stud sets in onyx and silver from...