Hello Bryn, yes, if you order custom size in mid-Feb. and use the free shipping method (Standard Shipping, 20-30 days shipping time), it will reach you around end of March. n_n
Please simply select the 'custom size'and fill up your exact body size (or the costume size you want it be) , and our tailor will make your costume size as required.
*Custom size costume doesn't charge extra cost, but the processing time will be longer than standard size costumes; for this costume in custom size, we need about extra 1-2 weeks to make it (excluding the shipping time).