Brake question, is it that easy?

[1303Si]

Am i right that these should be pretty much bolt on?
944 brake conversion

Car:
1303s -73

Rear:
Early (85.5 and earlier) removable backing plate, hub, e-brake parts.
85 & 86 Turbo rotor or Boxster S rotor or 993 rotor (299x24). 993 and turbo rotors need 3mm shim to center caliper.
4 piston brembo calipers from turbos or S2's?

Front:
Early 944 NA spindles, may need some machining for speedo cable
The stock 1303 strut
Special lower ball joints (17mm), biggest work there?
Reversing tie rod mountings
Hubs from Late NA (87-89) or Middle T (87-88) or Late T (89-91) AND 88 Turbo S
4 piston calipers from Early 944T (85?-86) or Middle T (87-88) and 89-91 S2 or Late T (89-91) AND 88 Turbo S
Rotors from Middle T (87-88) and 89-91 S2 (299x28)
what's the best way to get camber change near normal

does caliper brackets match to 4 piston calipers? or anything be as bolt on as i have imagined on my little mind?

Thank you already for answers