What you describe you want sounds like a turbo'd 103. Either could meet your goals rather easy but the 103's boost friendly 9.2 is a better starting point if you're only going to 350hp. The squirters arent that big of a deal. A lot of late 103 blocks have the machine work for them, just not tapped and drilled to the main galley. You will have to strip the block to drill and tap them as well as notch the pistons to clear them. If you plan on feeding a turbo and squirters you may want to come up with more oil pump capacity too. So probably not worth it in your scenario.

The 104.980 is pretty much the same block but with the squirters installed. The 104 head flows a good deal better on the high end so suffers from a weaker low end. I own both engines. My 103 is boosted to the 300-350 range. I plan to boost the 104 to the 5-600 range.

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90 300TE 4-M
Turbo 103, T3/T04E 50 trim
T04B cover .60 AR
Stage 3 turbine .63 AR
A2W I/C, 40 LB/HR
MS2E, 60-2 Direct Coil Control
3" Exh, AEM W/B O2
Underdrive Alt. and P/S Pulleys,
Vented Rear Discs, .034 Booster.
3.07 diffs 1st Gear Start

90 300CE 104.980
Milled & ported head, 10.3:1 compression
197° intake cam w/20° advancer
Tuned CIS ECU
4° ignition advance
PCS TCM2000, built 722.6
600W networked suction fan
Sportline sway bars
V8 rear subframe, Quaife ATB 3.06 diff