Buy that tail kit and start drilling! Before you know it a year will have passed and you still won't have the kit.
FYI, you can get good band saw blades from
eBandsawBlades. Good, quick service from them. I buy a few at a time so I don't have to worry about running out.
I have found 1/4" 18 TPI (Teeth Per Inch) blades work great on aluminum.
As for the bench grinder, I don't use it on aluminum. Put your scotch bright wheel on a mandrel and stick it in your drill press. That will give you more room to move parts around it. Just remember to slow the thing down to its slowest setting.
And don't even think of using a bench grinder on aluminum. That's a big no no. There was a tread about that a few months back.
I have a Delta bench sander with a 4" belt and 5" disk, works great. I have put a rough disk on the disk for rough shaping and a smoother one on the belt for cleaning up the parts and then finish them off on the deburring wheel.
I don't think I could have gotten as far as I have w/o my $10 garage sale band saw.