OK, take a $550 MIM bass; add a $60 p-up, a $100 bridge, $35 strings, $50 pickguard, $300 (minimum(?) custom paint) gives you $1095. SH sig at $1299 without all the hassle of buying, organizing assembling the parts (and not considering shipping) as a fan.....probably worth it!
IMO If you're spending $60 for SPB-1 you're spending way too much. LPB is not a custom color or refin. THe new mim's come in LPB and that color is pretty close to the real thing.