A guy in my brew club makes a pineapple pale. He throws the pineapple in a food processer then strains the pulp out. He only adds the juice. If you keg, that's when he adds it. If you bottle your gonna need to let it ferment out. It makes a tasty beer. Oh yeah, Use the Ripest/Sweetest...
I use t-58 for my wit. I ferment at 59deg and have never had a problem with attenuation or a stuck ferment. It took about 2.5 weeks to finish. I roused the yeast once a day as soon as activity really slowed down. It tends to give more pepper/spice than fruit that low.
I just used this yeast on a belgian pale and blonde. More phelonic than fruity, little banana with some bubblegum. I fermented from 66 up to 72. I like it better than just about every other belgian yeast out ( except wlp575 and the unibroue strain).
There was a write up in byo a few years ago using a rubbermaid brute. All you nee to do is put a grommet in the lid, then put a thin bead of keg lube on the rim of the can, and use some spring clamps to secure the lid down.
Depending on where live and how far you like to drive there is the StlBrews (the biggest) that meet off of Hampton, the Garage Brewers Society in O'fallon, and the StlHops (the smallest) club that meets in south city at Perennial Artisan Ales. They are all great clubs.
If you brew alot and plan out your brews ahead of time Mo Malt Supply is the way to go. Both Dave's and St.Louis Wine and Beer are both good LHBS. Dave's actuallys will sell specialty grains by the ounce which is nice.
Recipe looks good. The only thing I would change is swap out .5lb black malt for the special b. That should get you the toasty coffee flavors. Mashing low might help bring the gravity down, but with all that extract you might want add some sugar to help bring your fg down.