Points weeks aren't eligible for PIC Plus, only PIC Express. Depending on what you own, in some cases you can withdraw a points week from points and return it to a fixed week thereby making it eligible for PIC Plus.
When you make a purchase you must already own the eligible PIC Plus weeks. No exceptions. They cannot be in the process of transferring as Wyndham will call RCI to verify them. If they aren't there, you lose. You cannot use a points week that's in the process of being converted back. If you don't already own the weeks you intend on getting to PIC Plus them, make sure you ask which resorts are PIC Plus eligible.
With PICs a 3 or 4 bedroom will get 254k points, 2 bedroom is 154k, a one bedroom is 105k and a studio is 77k.
You will pay the program fee of $0.72 per thousand points on your PIC weeks. Also when you deposit your weeks to get the Wyndham points for them you'll pay a fee of $259 or it might be $289 for each week every year you deposit them. Sorry I don't remember how much the fee is. It went up last year, a lot, after I deposited our weeks.
Most likely you won't be able to get the Wyndham points for your PIC Plus weeks that first year. You have to deposit them, and have it confirmed, which takes another a few days, at least 9 months ahead of time. So that first year you'll have two options. Use the week or deposit it in RCI and get RCI TPUs, Trading Power Units, to use to go to other resorts in RCI. We have two 4 bedrooms that are our PIC Plus Weeks. Our first year I split the 4 bedrooms into four 2 bedrooms. I deposited 3 them and we used the 4th one. The TPUs are good for 2 years.
PIC Express Weeks are only for 5 years. The points associated with those weeks do count towards VIP levels. However you can't deposit the weeks and get Wyndham points for them. I've been told they can write the sale up so that if you don't actually own the weeks for PIC Express yet you can add them at a later date.
PIC Express is a hook sales uses for the owners who aren't knowledgeable. They serve a dual purpose. It gets you to buy that day and again when you're about to lose your VIP level. If the owner or potential owner were more knowledgeable they would walk away and not buy until they had their PIC Plus Weeks in hand. Then call telesales.
You must buy 49k points for each week you PIC Plus or PIC Express. Every few months telesales changes the promotions they offer; discounts and rebates. The discounts usually start at 100k points. Sometimes spending maybe $3k-$5k more and getting another 20k-30k more points gets a bigger discount and rebate making it a better deal. If they aren't offering more than a basic discount on say 100k points and you aren't in a hurry it might be worth waiting another 1-3 months to see what the next promotions are. Also they should give you the matching number of bonus points too. Those bonus points are good for 2 years.