What capacitor values?

I've had the speakers for 30 years and their sound is extraordinary (due in no small measure to the lack of complex crossovers and the full-range woofer).
The existing capacitor values are impossible to see as they are glue-gunned to the cabinet beside the drivers and I'm not a soldering person.
I need to order the new Dueland VSF caps which will take 2 weeks to get to me and then I will have a technician take the speaker apart and solder in the new caps.
I wanted to know what others thought about the best values for the new caps but if its difficult, I'll have to just the repeat the existing capacitor values.

If the sound has been excellent with the existing values, why would you change them? Keep in mind- When the new caps are installed, it will take a number of hours(perhaps 200+) for them to sound right.

The reason I may change them is that the Scanspeak Mid/Woofers and Tweeters were substituted a year ago for the original Hokutone drivers.
Whilst they sound OK, their characteristics (eg impedance and X-over frequencies are almost certainly different.
Does 200uF for the Mid/Woofers and 1.766uF for the Tweeters sound reasonable?

If those speakers are 8ohm: the 200uF cap will cross at 100Hz and the 1.76uF over 10kHz. If they are 4ohm drivers: 200uF= 200Hz, and 1.766uF=somewhere over the rainbow, I mean- over 20kHz. I seriously doubt the mid-range actually has the ability to reproduce that range of frequencies accurately. If it does, I'll buy a truckload of 'em from you! If the tweeter is a nominal 16ohm piece, it would come in at 5kHz, but the cap on the mid might as well not be there at 16ohms. Or are those the values you were thinking about substituting? Most people use 8ohm drivers when building their own systems. It would be good to know with what you're dealing. Do you have a multimeter? Here's the formula for capacitance per your impedance and cut-off desires(for a 6db/oct slope): C1(in uF)= 1,000,000/6.283 X speaker impedance X desired x-over freq.

Thanks Rodman,
The Tweeter is 6 ohm and the Mid/Woofer is 4 ohm.
The Tweeter at the moment has a 2.2 uF cap and the Mid I believe has a 10 uF cap.
Should I stick to these values?