[Aavso-photometry] Which Photometry Filters to Begin With ?

[Stewart Yeung]

Hi,

I am going to use STL-6303E and LX200R 14" to do
astrophotography + light-curve photometry. I control the
sub-urban observatory remotely from my city dwelling.

For astrophotos, I have the options of
LRGBC : 5 filters for colors
Ha, OIII, SII : 3 filters for narrow-bands

For photometry, the options are
UBVRI  : 5 filters
Clear : 1 filter

I suppose the Clear filter is the same for both jobs.

The STL-8W filter wheel can only hold 8 filters and I can't
replace filters remotely.

What other options, e.g. different filter wheel, are available ?
Which photometry filters are essential for beginner ?
Are V-R or B-V  o.k. ? Which color index pair is easier to begin with ?
Are the U and I filters basically impractical for use with amateur 
instruments ?

Regards,
Stewart