#1-
If the camera has a hot shoe and the flash has a contact on the bottom of its foot, no cord is needed. Otherwise it is needed. A dedicated flash is of no extra benefit on an SPII. An automatic flash, which has a sensor for determining exposure, will work automatically or manually as you choose.
Any brand of flash will work.
#2-
Ain't that just like a chick. :rolleyes: teasing, teasing...
You can do anything you want. I haven't heard of upholstery fabric being used, but I suppose some are as thick as some camera leathers, plus you could back them if you want. As for the idea-why not? Have fun. You're going to need a suitable adhesive, something which won't bleed through the fabric. Maybe that adhesive that comes in thin sheets and you peel and stick.
You could start a trend. Pentax in purple. Pentax in pink. Pentax in plaid. Pentax in paisley. Pentax in percale. Pentax in poplin... A seersucker Spotmatic.
Then you could go for a Chinon in chino, a Fujica in fuji, any cheaply made camera in chintz...
A d!&#+@l would of course be in moire.:rolleyes:
#3-
The terminal on the camera is called a PC socket or flash socket. So the cover will be called...you get it. They're available used on ebay, sometimes at absurdly high prices. Plain PC sockets are all the same, so the covers are not model specific. They're not a necessity, but if you want them, you can find them.
#4-
For pictures taken by light coming through a window during the day, use daylight film, of course. Otherwise tungsten film or daylight film with an 80A filter. You will probably still have a little warmth under regular household incandescent light. I like the extra warmth as it looks more natural to me than a fully accurate correction. If under fluorescent use an FLD filter with daylight film, FLW for daylight film under warm white fluorescents, though an FLD should still give a good rendition, just somewhat warmer.
Some films, especially color negative films, have been made less susceptible to the sickly green cast flourescents normally leave on film. Colors can be further corrected in printing.