Expensive is different for everyone (and there is this whole black Friday/cyber Monday thing going on in the US right now so prices are subject to change) and I am not sure how handy you are with a needle or what sizes you are looking for so here is a range...

Jacket

$43 to $52 - ngl, some of the pictures don't match so I am not sure what you would get and also it is cut for a guy

$67.99 down from $135.99 but also cut for a guy

$30.99 - women's; would need to remove pocket

Skirt

$23.97 - limited sizes

$16.99 - little more flare than needed and short

$5.74 to $7.74

$18.00 - wide range of sizes

Tights

$6.23

$35.00 - 100% cashmere 25% off with GHGIFT (also have a 30% student discount)

$14.98 - pack of white and black (the single black is $10.38)

Editing to add this...$49.99