www.screamandfly.com will be your friend here. Since you say it's a 90 that should be an old style cross-flow engine which means you can swap in ALOT of different model powerheads from 150-235 pretty easily. You can often times pick-up a complete 150-235 over there or good powerhead for under $1K that has never even seen saltwater in it's entire life.
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2011 SUNDANCE B20CCR SKIFF, 2011 YAMAHA 90HP 4 STROKE, 2011 KARAVAN SINGLE AXLE ALUMINUM TRAILER, LOWRANCE ELITE-7 HDI, MINN KOTA RIPTIDE TROLLING MOTOR
2000CC HYDRA-SPORT 225+HP EVINRUDE SOLD
AND THE PINK JEEP!!!! R.I.P.
http://www.wellcraftv20.com/communit...ad.php?t=11664