If it was me, I wouldn't buy the Monacor crossovers. They are unlikely to suit those drivers unless specifically designed to work with them. I'd look on ebay for a pair of second hand KEF Concerto crossovers which will match the drivers perfectly, put new caps in them and use those.
The Coles supertweeters can be introduced with a series capacitor separately if you really want them, they are not actually necessary, as the T27 extends to a claimed 30kHz and yes, it's probably worth holding out for some T27's.
You could try the Audax tweeters, but it may not be ideal. They are likely to sound bright.
It is impossible for anything digital to sound analogue, because it isn't analogue!